JILL HEINERTH is a Canadian cave diver, underwater explorer, writer, photographer, and filmmaker. She is a veteran of over thirty years of filming, photography, and exploration on projects in submerged caves around the world. She has made TV series, consulted on movies, written several books and is a frequent corporate keynote speaker. Jill is the first Explorer in Residence for the Royal Canadian Geographical Society, recipient of Canada's prestigious Polar Medal and the diving world's highest honor from the Academy of Underwater Arts and Sciences, the NOGI Award. In recognition of her lifetime achievement, Jill was awarded the Sir Christopher Ondaatje Medal for Exploration. She is a Fellow of the Explorers Club and member of the inaugural class of the Women Divers Hall of Fame.