Sandra Schoettner, marine biologist and oceans campaigner with Greenpeace Germany and submarine pilot Kenneth Lowyck doing pre-dive preparation from the cockpit of a submarine onboard Arctic Sunrise at Chiriguano bay, south of Brabante Island in Gerlache Strait, Antarctica. Greenpeace is conducting submarine-based scientific research to strengthen the proposal to create the largest protected area on the planet, an Antarctic Ocean Sanctuary.