The launch of Deepworker submarine in Pribiloff and Zhemchug underwater canyons. Dolphins swim around the submarine while it starts the immersion. Greenpeace spends two months with the ship Esperanza in the Bering Sea, to investigate deep sea habitats and to conduct scientific surveys of underwater canyons. By utilizing state-of-the-art technology to observe coral, sponges and hopefully discover new species, Greenpeace will push for greater protection of the Bering waters.