Tanning Deck + Hot Tub + Infinity Pool + Waterfall = My backyard
Here's a great example of a conventional pool turned into a natural swimming pond. They offer a much lower maintenance alternative to conventional pools and allow you to swim in clean, chemical free water.
Funny pictures about Guitar swimming pool. Oh, and cool pics about Guitar swimming pool. Also, Guitar swimming pool photos.
Collection of 19 incredible natural swimming pools! (via Elle Decor). This is the only way I'd do a pool.