Great Crested Newts in Heath Park Pond and the Flora and Fauna of Heath Park

Heath Park is a wonderful nature conservation area

Heath Park Second Pond (Photo: Steve Andrews)

Heath Park in Cardiff is a wonderful area for nature conservation and is home to a colony of the rare great crested newt (Triturus cristatus). The amphibians breed in the pond there that has been in the park for very many years.

Great Crested Newts

Those responsible for the park and pond’s upkeep have very wisely left dead tree-trunks around the edges of the pool and in the woodland that surrounds it.

Habitat created for Great Crested Newts (Photo: Steve Andrews)

Water plants, such as watercress (Nasturtium officinale) are enclosed in mesh so that they are protected and this creates a wonderful area for the newts to lay their eggs in and to hide. Great crested newt females wrap their eggs in the leaves of aquatic vegetation, as do other species of newt.

Aquatic plants (Photo: Steve Andrews)

An information board gives a lot of information about the great crested newt, including how far it travels away from water. The much smaller palmate newt (Lissotriton helveticus) also breeds in Heath Park Pond. This comes as no surprise to me because I used to have a girlfriend many years ago, who lived in the nearby King George V Drive that circles Heath Park, and these far commoner newts could be found in the garden pool of the house where she lived. On the info board, there are illustrations and notes about the other interesting species of wildlife that can be seen in the pond. The common frog (Rana temporia) is another amphibian that breeds here.

Info board (Photo: Steve Andrews)

Aquatic insects that use the Heath park Pond include the great diving beetle (Dytiscus marginalis), the water boatman (Notonecta glauca) and dragonfly and damselfly species. The great diving beetle and its larva hunt tadpoles, small newts, fish and worms. The larvae have large mandibles with which they grab their prey as they suck out the life-blood. Both adults and larvae will bite. The adult beetles fly by night to look for suitable stretches of freshwater. The water boatman or backswimmer can also fly. It is a predatory bug that feeds on mosquito larvae and other small water creatures. It gets its name from its habit of swimming upside down and using its legs as paddles to propel it through the water.

Alien and invasive species

Parrot's Feather

The information board includes a warning and request: the public are asked not to release species that are non-native and alien to this country. An example being species of terrapin that can be a danger to British wildlife. The species of water milfoil known as parrot’s feather (Myriophyllum aquaticum) is mentioned as an example of an invasive species, and it is pointed out that this particular plant caused a problem at Heath Park Pond where it grew abundantly and had to be carefully removed. It is a threat to British species because it grows so well that it displaces native plants.

Elsewhere in Heath Park

Elsewhere in Heath Park they have constructed a second pond near the golfing area. The information board explains that great crested newts do best in places where there are more than one pond, so that if one pond dries up in hot weather, for example, the amphibians can still breed in another. I don’t know if any newts are using it but it is certainly big enough and there were two mallard drakes swimming around on it.

Walking a dog to Heath Park Main Pond

There is quite a lot of woodland and areas which were once rough ground and scrub have been allowed to grow into thickets of small trees and bushes. There are plenty of great places for birds and other wildlife to live in the park. It is reported that the green woodpecker (Picus viridis) lives in this woodland, and I wouldn't be at all surprised because it is a great place for them.

Paths help you enjoy walking around the woodland and many people take their dogs for walks in Heath Park.

In the grassland and extensive lawns of Heath Park there are extensive colonies of lady’s smock or cuckooflower (Cardamine pratensis), which takes its name from its habit of flowering around the time when the first cuckoos could be expected to arrive in the UK.

Cuckoo Flowers (Photo: Steve Andrews)

It is of especial interest, and a useful plant when it comes to wildlife conservation, because it is one of the main food plants of the caterpillar of the orange tip butterfly (Anthocharis cardamines). This pretty species, with orange tips on the forewings of the males, has been increasing again in numbers in some parts of Britain, so anywhere that plants that its larvae feed on grow, is going to be helpful in ensuring this butterfly’s survival. The cuckoo flower used to be gathered as a substitute for watercress, and like the latter plant it likes to grow near water.

The abundance of lady’s smock plants in the park, as well as the natural woodland, and the obvious great attention that had been paid to making the ponds a suitable habitat for great crested newts and other aquatic wildlife, made me feel that Heath Park is one of the best parks in Cardiff for nature conservation.

The Season for Newts

Newts at Fairwater Park aka "The Dell."

Great Crested Newt male (Photo: Public Domain)

When I was a boy, as well as tropical fish, stick insects and exotic silk moths I kept as pets, I also used to keep newts. In spring, which was the season for newts, I used to catch them in a large pond in a local park, which was called Fairwater Park, but was referred to by me and my friends as “The Dell.” I always used to wear my Wellingtons for trips to this park and carry a bucket with me, into which I put whatever I caught.

Melissa Houghton taking photos at Fairwater Park pond (Photo: Steve Andrews)

The pond in Fairwater Park was very untended by humans and had large masses of grass growing in it and around the edges, it had willow trees and bushes, and brambles coming right down to the water in some parts. It was wild and how it should be! It had large clumps of bulrushes and much of the water surface was covered in floating leaves of amphibious persicary, broad-leaved pondweed and duckweed.  The pond was basically full of aquatic vegetation with very little open water. It had plenty of brown stinking mud and would ooze methane bubbles when you stepped in it.

Nepa cinerea the Water Scorpion (Photo: Public Domain)

Many species of aquatic life lived in this pond. There were ramshorn snails, water scorpions, water mites, water bugs and diving beetles, pond-skaters, water measurers and water crickets, caddis fly larvae in their cases made from broken bits of vegetation and water snail shells, and medicinal leeches that can suck your blood.

These leeches, by the way, are now a very rare species in Britain. I am pretty sure, without checking current statistics, that many of the other species I have listed have drastically declined in numbers too.

But getting back to Fairwater Park pond, as it once was, it was an ideal habitat for newts. All three species found in Britain bred there. You could find common newts, palmate newts and great crested newts, which last-named species is now endangered, and often gets in news stories because it has been found somewhere that was scheduled for development.   

I used to catch newts, mainly by hand. I would part the weeds, spot a newt and swiftly grab it. I took my captures home and kept them in aquariums I had set up for them. In those days, you could legally catch and keep these amphibians, but this is not the case now, and for good reasons, because there are a lot less newts around now, when compared to the numbers in the UK when I was a boy.

What I loved about newts was their amazing colours. The male common and great crested newts have high frilly crests and underneath their bodies they have orange bellies spotted with black. Palmate newt males have dark webbing on their hind feet that can grow so much that it looks like they have squares of skin around their toes. They also have tiny thin filaments sticking out the end of their tails. I really don’t know why. Female palmate newts look very like female common newts but there is a difference, though it is hard to explain. The female palmates are an olive-brown or dark brown with pale bellies. The common newt females are a different shade of brown and slightly more colourful underneath. Newts have little hands and cute sparkling eyes. They have to swim up to the surface every now and then to take a gulp of air. They are fascinating to watch. The females have no crests and are not colourful like the males, but they have their own charm. They lay their eggs in water plants, carefully wrapping each egg in a leaf.  

Common Newt tadpole (Photo: Charlesjsharp)

I used to enjoy keeping the newt tadpoles too and watching them grow bigger and bigger, and losing their gills to become miniature newts that could leave the water, just like their parents could do. I used to feed my adult newts mostly on very small earthworms and the newt tadpoles fed on daphnia, which are tiny crustaceans, also known as water fleas.

Nodding Burr-marigold (Photo: Public Domain)

Sometimes I found sick newts in the pond. Sometimes they had seeds of the spiky burr-marigold embedded in their mouths. I could sometimes help the newt by prying the seed out but not always. Also some newts had dropsy and their bodies became very swollen so they could not swim properly. They would sadly die but there were plenty more healthy ones.

It used to sadden me, though, seeing what some boys used to do. They would catch great crested newts, which they incorrectly called salamanders, and put them on the grass where they would take turns in throwing knives at the poor amphibians. These boys took pleasure in the suffering they caused the newts and it made me sad but I was too scared to stop them because I knew they would beat me up. I didn’t like a lot of boys. I found them violent and destructive. I much preferred being out in nature on my own or with a few good friends I trusted. Boys I didn’t know, and many boys I did know, I began seeing as a source of potential danger to be avoided. This was to go into my ideas about male humans, so I grew up thinking men and boys were more dangerous than women and girls.

But getting back to the newts, it was many years later and I was in my late teens but still living at home.  I had seen an advert for the Cardiff Naturalists Trust and thought it would be a good idea to get in touch with these people to tell them about the great crested newts, which I knew were very rare. Incidentally, my good friend and fellow author C.J. Stone has also told this story. Anyway, I wrote a letter and sent it to the address of the organisation, and in due course, I received a reply from someone who was in charge, thanking me for my information but saying he had done a “preliminary pond dip” but had found no evidence of great crested newts in the pond, as I had described. He asked if it would be OK if he called on me so I should show him some of these newts and asked me to catch a few. I agreed to this and caught some great crested newts and put them in a bucket. When the man and his wife called at my parents’ house I was all ready to show them I was correct. The man in charge of the Cardiff Naturalists group was amazed but could see for himself that I had some specimens of this species. He asked if we could go up to the pond so I could show him how I caught them. I put my boots on and off we set in his car. When we got to the pond I waded slowly into the water, parted some of the floating grasses and weeds, spotted a newt and grabbed it. “Got one,” I said, as I put the newt into my bucket. “And another,” I added as I caught one more. Within about 10 minutes I had managed to catch several great crested newts and showed the man from the naturalists group how I did it. He was impressed and thanked me again, saying he would see to it that some work was done to make sure the pond was a safe habitat for this rare species of amphibian in future. I was glad I had got in touch with the Cardiff Naturalists and felt proud of my efforts. My attitude was to change drastically though many weeks later when I saw what had been done to the pond in The Dell. Large masses of weeds and grass had been dredged out and thrown on the banks, big spaces of open water had been created, and marginal vegetation had been cut back or destroyed. The pond was no longer wild, like Mother Nature intended. It had been cleaned up and made to fit what people thought it should be like. People like big spaces of water but newts don’t because they can easily be seen by predators.

They like weedy ponds where they can hunt, look for mates, and lay their eggs. I regretted my part in having alerted the local organisation to this, and have carried that regret onward because there were never anywhere near as many newts there after that. In the years that followed further work was done at the pond. Water lilies were planted, a big space of open water was kept that way, a wooden landing stage was erected, so people could look out over the pond more easily, and the grass and plants that grew around the edges were often cut back. Now admittedly the pond looked a lot nicer, more like a pond you might have in a painting or on a postcard perhaps, but a lot of wildlife stayed away, apart from some ducks.

Ducks at The Dell (Photo: Steve Andrews)

Footnote: The above article is taken from an unfinished book of memoirs I started writing. Fortunately in many ways, due to the economic crisis and government cuts, the pond is not being tended to any more and vegetation has returned all around it and in it, as you can see in my photos, which were taken in 2015.

Why Tenerife is a paradise for naturalists

Tenerife is a naturalist’s dream

Tenerife forested mountains

Tenerife is a popular island in the Canary Islands for tourists who spend their holidays there but it is also every naturalist’s dream. With its forests, mountains, semi-desert areas, cliffs, sand dunes and range of beaches there is a real diversity of habitats. There are so many types of countryside on the island, and also a range of very different microclimates. This is why so many forms of flora and fauna can be found there, both endemic species and introduced and naturalised plants and animals.

Laurel Pigeon (Photo: DrPhilipLehmann)

There are two main sorts of forests: pine forest and ancient evergreen laurel forest. The latter of these is very important because the patches of this type of woodland that still stand on Tenerife and some of the other Canary Islands are some of the only remaining stretches of this form of forest in the world. Rare birds, such as the laurel pigeon (Columba junoniae) and endemic plants like the Canary Islands foxglove (Isoplexis canariensis) can be found in the laurel forests.

Viper's Bugloss species

Red Bugloss

Tenerife has a very great range of species in the Echium genus of viper’s bugloss. The most spectacular species is the red bugloss or Teide bugloss (Echium wildpretii), which as its name suggests has red flowers that form in tall spikes, and it is found growing high on Mt Teide where there is a very extreme habitat. Because it is so high the sunlight is very strong but it gets very cold at night. The ground is dry and rocky and it looks like another planet in the Tenerife highlands.
There is a shortage of naturally occurring freshwater in Tenerife because it drains quickly into the ground and down to the sea after it rains but this has not prevented a fascinating selection of freshwater creatures and water birds being found on the island. Many species of dragonfly, two species of frog and the mosquito fish (Gambusia affinis) mainly depend on the reservoirs and irrigation tanks used by farmers for collecting water for their crops. The frogs, by the way, are the Mediterranean tree-frog (Hyla meridionalis), and the Iberian water frog (Rana perezii). In the village of Erjos, however, there are some large ponds that formed after the topsoil was removed many years ago. These pools attracted all sorts of wildlife and make a wonderful area for appreciating nature and walking in the surrounding hills and forests. 

Grey Heron

The grey heron (Ardea cinerea) is a bird that uses natural and artificial freshwater pools to search for fish and frogs and is often seen on the island. It will also take goldfish from ornamental ponds in parks and gardens.

Tenerife has lizard species, two types of gecko and a skink but no snakes, despite having excellent habitats for these reptiles.

Monarch butterfly

There are many interesting insects to be found on the island. A butterfly to look out for is the monarch (Danaus plexippus). It was able to colonise the Canary Islands because the tropical milkweed (Asclepias curassavica) is often grown in gardens, flower borders and parks. This large and beautiful butterfly can be seen flying all year round and is most often seen in cities, towns and resorts where its caterpillar’s food-plant grows in gardens. The massive and strange looking death’s head hawk moth and its larva are often found on Tenerife. This moth gets its name due to the skull-like marking on its thorax. The fact that it can squeak too has added to its weirdness and has made it the subject of various superstitions. The caterpillars are very big and feed mostly on thorn-apple (Datura stramonium), which is a very common weed on the island, and also on the shrub Lantana (Lantana camara).  There are also some species of praying mantis that can be found on Tenerife.

Mantis

Botanists will be excited by the very large number of succulents that grow wild on Tenerife. There are many endemic species of Aeonium and Euphorbia. The Canary Island spurge (Euphorbia canariensis) looks more like a cactus and grows in large clumps on arid and rocky ground around the island.

Look out too for the prehistoric-looking dragon trees (Dracaena draco), which can still be found occasionally growing wild but are very rare. They are much more commonly seen in parks and gardens around Tenerife, and there is the famous “Drago Milenario,” said to be 1,000-years-old that is in its own park in Icod de los Vinos.

If you are interested in wildlife you will find plenty to interest you wherever you are on the island.

Kickstarter campaign for Herbs of the Sun, Moon and Planets at Kew Gardens

Herbs of the Sun, Moon and Planets is a herbal with a difference!

Herbs of the Sun, Moon and Planets is a herbal with a difference because it looks at why ancient herbalists, like Nicholas Culpeper, decided to group various culinary and medicinal herbs under the astrological dominion of the Sun, Moon and the planets Mercury, Venus, Mars, Jupiter and Saturn. Of course, the title otherwise would make you wonder what it is about because this is the only planet in this Solar System with vegetation growing on it, as far as we know.

Culpeper: Public Domain

The ancient herbalists assigned plants to planetary rulers according to their characteristics. For example, herbs ruled by Mars the god of war, had something aggressive about them, such as spines or sword-shaped leaves. Herbs ruled by Venus the goddess of love had some connection with sensuality and passion. 

Dragon Tree: Public Domain

The weird dragon tree from the Canary Islands is a herb of Mars. It has lance-shaped leaves and bleeds a red resinous sap called dragon’s blood. The rose is a symbol of romantic love, and not surprisingly is a herb of Venus. Herbs of the Sun could have golden-yellow flowers, like the sunflower, or perhaps they have petals that radiate out from a central disk. The sunflower has this characteristic too. Herbs of the Moon have something rounded about them, such as rounded leaves, or white or silvery colour. The white water lily is a good example of a herb of the Moon. water is also associated with the Moon because the Moon has an effect on the tides.

White Water Lilies : Public Domain

Mercury was the messenger of the gods, so herbs ruled by Mercury have something that really communicates about them. Fennel is an example of a herb of Mercury. It communicates visually with its graceful appearance and feathery leaves, and to our tastes and sense of smell with its flavour like aniseed and aroma like aniseed too.  Herbs of Jupiter have something expansive about them and this is why many trees, such as the lime tree and the oak, are considered as under the dominion of Jupiter. Herbs of Saturn could be poisonous ones, like the hemlock, the monkshood and the henbane. This is because Saturn is associated with death and the “Grim Reaper.”

Herbs of the Sun, Moon and Planets is being published by Moon Books at the end of May, 2016. It has seven sections for each of the seven heavenly bodies, and seven herbs are described in each section. The book follows on from Herbs of the Northern Shaman which was published by the same publisher. It is already listed on Amazon.

An online course about Herbs of the Sun, Moon and Planets

With the help of my partner Melissa Houghton I am putting together an online course of video presentations featuring the many herbs covered in my book.  The course will give additional information to what is in the book and will include footage of the actual plants which will be useful for identification. We want this educational project to be an artistic one and so it will contain Melissa’s poetry in places too. It will be a collaboration and a work of inspiration, as well as a work of education.

Birth of Venus :Public Domain

In addition to looking at why the ancient herbalists decided that specific herbs were governed by particular planets and their deities, and the associated folklore and superstitions about the plants, I will be looking at the practical uses for the herbs, in herbal medicine and in the kitchen, in the perfume industry, to make cosmetics, or to make clothes dyes even. Herbs are all around us and have so many uses. The painkiller we all know as Aspirin has its origins in the willow tree. Herbs are a part of the natural world and help us connect with it, the more we know about them.  This is why this project is educational in a bigger way than just learning about herbs and how they were once viewed by the herbalists of the past.

Kickstarter Campaign

Melissa and I have started a Kickstarter Campaign to help us raise the money for a trip to London where we can visit Kew Gardens and capture video footage for the course, as well as to consult the fantastic library in this world famous botanical gardens. Kew is a place where we can get up close to the plants I have written about, and where I can research about them in the library. The Herbarium at Kew Gardens has over seven million specimens in its vast collection. The Kew Library, which is part of the Herbarium, has one of the largest collections relating to botany in the world. Where better could a researcher go?

To find out more about our campaign please see Film featuring Herbology with the Bard of Ely at Kew Gardens. Please support the campaign by backing it and sharing it! With your help we can make this work! Backers will receive an artfully rendered film of Kew Gardens with me showing you the plants we found there, and Melissa waxing poetically.

Endorsements for Herbs of the Sun, Moon and Planets

Herbs of the Sun, Moon and Planets has received some excellent endorsements. Celebrated poet and author Peter Finch had this to say about it: “The spirit here might at first seem to be Sun Ra via Captain Beefheart or Dr William Price channelling Iolo Morganwg but read and you’ll find a work of accessible erudition, a herbalist ground breaker of considerable scope. Steve Andrews, poet, mystic, and author of distinction rides again.”

And Archdruid of Avebury and Keeper of the Stones, Terry Dobney, endorsed it with these words: “As the Keeper of the Stones here at Avebury, the knowledge of the herbs, plants and trees is a daily wonder, and this knowledge is there in this intriguing book, for all to unlock the secrets of their magic and uses. A beneficial "right" arm to those full of questions! Seek the knowledge and you will understand - highly recommended!”

British hedgehog numbers in serious decline

The British Hedgehog is no longer common

Hedgehogs were once a very common animal in the UK, and in the 1950s there were an estimated 36 million living in our gardens, parks and countryside.  Very sadly this is no longer the case and The People's Trust for Endangered Species now believes there are fewer than one million left.  The alarming decline in hedgehog numbers has been reported on in The Guardian and by the British Hedgehog Preservation Society.

Hedgehog (Photo: Public Domain)

Threats to the hedgehog

Like so many endangered species of wildlife the hedgehog has many threats to its continued survival. Pesticides, such as slug bait,  can potentially harm hedgehogs that inadvertently eat poisoned slugs and snails. Even if the slug killer doesn't kill a hedgehog directly, the slugs and snails it does kill could have been food for the spiny animal. Habitat loss and degradation is another problem hedgehogs face. Many gardens are now paved over or kept so tidy that the number of insects and other invertebrates that hedgehogs feed on are drastically reduced in numbers. Hibernating hedgehogs can get burned to death if they are sleeping under a large pile of branches, twigs, leaves and other rubbish that someone has accumulated as a bonfire. 

Flooding caused by Climate Change is another threat to sleeping hedgehogs. Although the animals can swim to safety they are unlikely to be able to do so if water floods where they are resting or hibernating. The hedgehogs would be drowned in their sleep.

Hedgehogs are a very adaptable species that can live in a very great range of habitats and eat a wide variety of foods, including slugs, snails, worms, insects, centipedes, frogs, mice and snakes even. They can climb and swim. They wear a spiny suit-of-armour as a means of defence. They were once very common and widely distributed in the UK, however, like so many forms of British wildlife they have been unable to adapt fast enough to survive the sweeping changes humans have brought to the countryside.

Roadkill

A hedgehog after dark (Photo: Public Domain)

Hedgehogs are one of the main animals that become victims of roadkill. Hedgehogs are mainly nocturnal creatures and this means that drivers have less chance of seeing them in the road ahead, and in any case, the animals are very bad at getting out of the way, even if they do sense danger. 

The number of hedgehogs reported as roadkill has fallen drastically too, which suggests that their populations have seriously dwindled in numbers. The animals are not there to run the risk of being killed crossing a road to begin with!

Hedgehogs in popular culture

Hedgehogs have been featured in popular culture in Britain in literature, poetry and song. Beatrix Potter's Mrs Tiggy-Winkle is a character so many children have loved.  Folk-rock icons The Incredible String Band wrote a song entitled The Hedgehog's Song that was included on their album 5000 Spirits. 

The prickly but cute little animal is a firm favourite of very many people, so it is really saddening to know that the number of hedgehogs in the UK has dropped so dramatically. 

Fortunately, very many people are trying to do something to reverse the decline in hedgehog numbers and to save the little animals before it is too late.  Campaigns have been set up like this one.

It is hard to imagine a British countryside where hedgehogs are an extinct species, so let us do what we can to prevent this ever happening! 

Outdoor life and recreation in London - parks, lakes and city farms

More to London than just its famous buildings

London is the cosmopolitan capital of the UK, and apart from famous buildings, such as Buckingham Palace and Westminster Abbey, as well as places of interest like Trafalgar Square, the city has plenty of parkland offering inner city recreational areas.

Primrose Hill, London (Photo: yaili)

Hyde Park

One of London’s largest and most well-known parks is Hyde Park.  It is one of the eight Royal Parks of London and is famous for its Speakers’ Corner where lively outdoor public speaking and debate can take place.

Speakers’ Corner (Photo: Wally Gobetz)

Visitors to London often choose hotel accommodation for the length of their stay and there are plenty of hotels to choose from near Hyde Park.

Hyde Park has a large lake known as the Serpentine. It is often used for sporting activities including swimming. In 2012 it was the venue for marathon swimming events in the Olympics.

Ducks, geese and a heron on the Serpentine (Photo: Christine Rondeau)

The western half of this lake is called the Long Water. It is divided from Hyde Park by a bridge and is in Kensington Gardens.

The Long Water (Photo: Jon Colverson)

Regent’s Park

Regent’s Park is a very large park situated in the heart of London’s north-west.

Regent’s Park Lake (Photo: S Pakhrin)

Its 395 acres contain many attractions and amenities, including London Zoo, Queen Mary’s Gardens, Primrose Hill, Regent’s Park Lake, and the largest outdoor sports area in London.

St James’s Park

St James’s Park is another of the Royal Parks of London with its own lake.

Pelicans in St James’s Park (Photo: Garry Knight)

Here you can expect to see ducks, geese and even a resident colony of pelicans.

Richmond Park

Richmond Park is the largest of all the London parks and is situated in the south-west of the city.

Deer in Richmond Park (Photo: Sam Greenhaigh)

It is important for nature conservation and has hundreds of deer living in it, as well as a number of ponds and streams that attract wildlife.

Green Park

Green Park lives up to its name because this park in central London has no buildings and no lake, but plenty of grass, flowers, bushes and trees.

Baseball in Green Park (Photo: nikoretro)

Its peaceful atmosphere make it a great place to relax and very popular with sunbathers.

London’s Commons and Heaths

London also has a lot of commons and heaths that make great places for walking, having picnics, relaxing and enjoying nature.

Hampstead Heath (Photo: Francisco Antunes)

Clapham Common and Hampstead Heath are two of the most well-known.

London’s City Farms

London has many city farms that offer a slice of rural life without leaving the city.

Hackney City Farm  (Photo: Rosa G.)

These farms often offer volunteer programmes as well as catering for children.

The River Thames

A view of the River Thames (Photo: Berit Watkin)

Besides the parks, commons and city farms, London’s River Thames offers all sorts of outdoor activities, including boating, water sports, wildlife spotting or simply strolling on the riverbanks.