Swimming pond - do you know any hotels or holiday rentals that have one?

[SaltyGoodness]

I'm in love with the idea of swimming in one, they look so lovely... Any idea if there are any hotels/villas that have built one, especially with a bit of sandy bank for DC to play in? Looking for a man made / built swimming pond, not just a naturally occurring one. This sort of thing ...
www.theswimmingpondcompany.co.uk

Here in the UK. You'll find loads in Austria and Germany such as here

They are called Biotop, a google search should bring up a good cross section like this or this

I think the Lower Mill Estate has something like this, as well as a regular swimming pool.

I looked at this place as a possible for our holiday recently. It's in Cornwall:

www.littlewhitealice.co.uk

Jacaranda holidays have one with shared villas and a lovely looking natural swimming pool. Sorry I can't remember the name of them though.

We have a swimming pond, we also do b&b