au naturel: the ultimate swimming pool

The sun is actually out in New York City (well it's trying to come out) and I'm inspired. This natural swimming pool would be exactly the kind of pool I'd love to have next to my pre-fab, eco-friendly dream house. How great would a chlorine/chemical-free pool be? A pump drawing water through an ultraviolet filter to kill bacteria and algae allows plants to grow and flourish around the pool. It would be like having your own backyard pond, only cleaner and more modern! Brilliant.

All images from Green By Design