An alternative to chlorine pools, the BioTop Natural Pools use plants to keep water clean and clear. Wikipedia has some more info on natural swimming pools as well. These could make a great addition to a permaculture design site.
If you don't have a view, then create your own. The architecture of the home, the ball sculptures and the pool are all absolutely beautiful surroundings for this simple deck in a courtyard-style home. modern pool by Dumican Mosey Architects