From the frozen tundra to America's tropical south, the states with the most islands in their waters tend to have long ...

There are only a few places in the world where you can see whale sharks. The Ningaloo Reef in Western Australia is one of ...

A scuba diver until age 79, Georgette Apol Douwma photographed reefs around the world and then transformed her images into dazzling kaleidoscopic designs. Photographer Georgette Apol Douwma’s ...