Take a dive into the deep with writer and swimmer Bonnie Tsui and discover what it is about water that seduces us, heals us and brings us together. Our evolutionary ancestors swam for survival. Now we swim in freezing Arctic waters, wide channels, and piranha-infested rivers just because they are there. Swimming is an introspective and quiet sport in a chaotic age. It is therapeutic for those who are injured and it is one route to that elusive, ecstatic state of Flow. Propelled by stories of polar swim champions, a Baghdad swim club, Olympian athletes, modern-day samurai swimmers and even an Icelandic fisherman who improbably survived a six-hour swim in the wintry Atlantic, 'Why We Swim' takes us around the globe in a remarkable, all-encompassing account of the world of swimming.