Natural Swimming Ponds
Post categories: pond plants,Ìýponds and water gardening
| 07:00 UK time, Wednesday, 9 November 2011
On a cold, frosty morning like today the idea of diving into a cold garden pond for a swim isn't my idea of fun. But these natural swimming ponds are becoming quite popular as people like the idea of swimming in clean, chemical-free water. Perhaps in the summer when the water temperature was higher I might be tempted.
They function and look exactly like a pond but have a large plant-free area which is the swimming zone. This can be deep or shallow and usually has steps down into the water. The planting is confined to a 'regeneration zone' outside the swimming space and that is where the filtering and cleaning of the water takes place. Crucially this is also the area that any wildlife stays, as the thought of coming face to face with a frog during a morning swim isn't my cup of tea!
These specially designed ponds first appeared in Germany and Austria during the 1980s and have since become popular across the Continent. They arrived in the UK about a decade ago and there are now an estimated 20,000 across Europe including several open to the public.
Despite my reservations, we are currently designing a natural swimming pond (NSP) for a client in the New Forest and so have been finding out a bit more about them. The two zones need to be roughly equal in size to achieve a balance and a pump keeps the water moving around the system.
The plants and the gravel they are grown in act as biological filters so that the water in the swimming area is clean and soft on the skin and hair. No chemicals need ever be added making the running costs significantly lower than a conventional pool as well as much more environmentally-friendly.
We are designing the pond to look as natural as possible with soft curves and lawn, gravel and rocks around the edges to make it look as though it has always been there. You can also make them more formal with decking or paving. We'll make sure there is a seating area next to the water because it is likely to get plenty of use either as a diving platform or for those who don't want to swim but who can't resist the temptation to paddle or sit with their legs in the water.
Both styles will look amazing after dark with careful lighting. The planting in the regeneration zone can be selected from a huge list of suitable moisture-loving plants. We are choosing low-growing water lilies as well as huge leaved arums and hostas, with flag irises and bullrushes for height.
Regular maintenance will be reduced compared to a normal pool but leaves still need to be skimmed off and there will be need for some gardening to be done as the the regeneration zone does need to be tended like any garden area. Some plants will have to be cut back occasionally, some lifted and divided as they grow too large and there will be some weeding.
My biggest concern is what the water temperature will be and how often swimming in the pond would be comfortable. It seems that the larger the body of water, the more it will retain warmth during the year but there are also options to add some background heating through the use of solar panels or ground-source heat pumps. We are going to find out more about them and that might just be enough to persuade me that I want a natural swimming pond too.
is a award-winning garden designer.
Comment number 1.
At 10th Nov 2011, hereisabee wrote:The idea of swimming in natural water is a much older one, these two photo's are the pool at Garsington Manor.
When Andrew Marr illustrated his 'History of Britain' on TV some years ago he painted the scene of decadence with Lloyd George and a 'popsey' greeting another man as he emerged naked from the pool at Garsington. However this scene was in reality a contrast between socialites and the aesthestic. Such natural bathing was incredibly popular, 'Parson's Pleasure' in the University Park's Oxford supplied the needs of academics.
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Comment number 2.
At 11th Nov 2011, Sara wrote:Does anyone know of any public natural swimming ponds in the UK?
I love these - they fit beautifully into the landscape, look stunning all year round, and are great for the environment, attracting all sorts of biodiversity. How amazing to be able to swim in naturally purified water without any chemicals - I guess they could also be used as skating rinks in the winter..
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Comment number 3.
At 12th Nov 2011, Janine Pattison wrote:Hi Sara, I don't know of any natural swimming ponds that are open to the public. If anyone does, it would be good to know about them. There are several in Austria and Germany - some really large that cater for literally hundreds of users in the summer. But I think swimming in open, natural water is more popular on the Continent.
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