National Geographic Explorers-in-Residence Mike Fay and Enric Sala are on a quest to protect the rich coastal waters of Gabon. Full of hippos, sharks and humpback whales, these waters are some of the last healthy oceans in western Africa, but illegal trawling, particularly industrial fishing, threatens the livelihood of these habitats. Their goal: Convince the current Gabonese president to extend and create new protected areas to save the uniquely remarkable life under these vulnerable seas.