Canadian Cave Diver Jill Heinerth
Most people try to keep their head above water. Jill Heinerth prefers to do the opposite. The self-described "aqua-not" is an award-winning Canadian cave diver who has spent more than 30 years filming and exploring submerged caves around the world. She is the first Explorer in Residence for the Royal Canadian Geographical Society, the recipient of the Canada's prestigious Polar Medal - and the author of a new book called "Into the Planet: My Life as a Cave Diver". She is also one of the inspirational speakers at the Seven Wonderers event held tonight in Calgary as part of Beakerhead festival.