Jill Heinerth is an expert technical diver, writer, photographer, filmmaker and the inaugural explorer-in-residence for the Royal Canadian Geographical Society. Considered one of the most accomplished explorers and underwater cave divers in the world, she has excelled at this high-risk activity with unparalleled skill. Her work has helped researchers unlock the history of climate change while broadening our understanding of the underwater ecosystems present in both the Arctic and the Antarctic.