Hi, and welcome to the forum!!

Here is a link to a long thread about natural swimming pools http://www.poolforum.com/pf2/showthr...-Photo-Gallery that I think you need to read before you make a final decision. If you can't follow the link, give Ben a few days to complete your registration, or log out, go to the PoolForum main page, and scroll down until you see the category called "Photo Gallery". The first post in there that is NOT a sticky is the one I have linked to above.