This gorgeous natural Swiss pool proves we don’t need to swim in chlorine

http://inhabitat.com/herzog-de-meurons-naturbad-riehen-is-now-open-for-chlorine-free-swimmming/

"To clean the water, first a strainer filters out grease, particles and hair. Then water is sent to the regeneration area, where plants like water lilies and irises work with aquatic sediment to filter and absorb bacteria and other compounds. Finally the clean water is pumped back into the bathing area."