From groundbreaking research to the beauty of marine sanctuaries teeming with life, these images shine a spotlight on the ocean and the Explorers who champion it. South American sea lions (Otaria ...

Relief shown by shading and spot heights. Depths shown by land form drawings, shading, and soundings.

National Geographic Explorers participating in the National Geographic and Rolex Perpetual Planet Ocean Expeditions are conducting scientific research across Earth’s most crucial ecosystem. Through ...