A young married couple celebrate their ten year anniversary by scuba diving in the clear freshwaters of Devil's Den Springs, a sinkhole in Williston, Florida, as the afternoon sun filters down into the cavern.

Adult humpback whales (Megaptera novaeangliae) co-operatively bubble-net feeding in Southeast Alaska, United States of America

Adult humpback whales (Megaptera novaeangliae) co-operatively bubble-net feeding in Snow Pass, Alaska, United States of America, North America

Portrait of synchronized swimmers upside-down underwater

Scuba diver swims through lava arches with sun rays, Cathedrals dive site, Lanai City, Lanai, Hawaii, United States of America

Male diver with sun over ocean surface, Island of Hawaii, Hawaii, United States of America

Scuba diver looking at bright Butterflyfish (Chaetodontidae), Lanai City, Lanai, Hawaii, United States of America