Atlantic spotted dolphin, Olympic swimmer Mikako Kotani.
Atlantic spotted dolphin and Olympic champion swimmer Matt Biondi.
California sea lion and diver consider each other, underwater in the clear ocean water of Guadalupe Island.
A SCUBA diver swimming over a rocky reef covered with kelp, watches a brightly colored orange garibaldi fish.
Enormous Ocean sunfish and freediving photographer, open ocean.
Ocean sunfish and photographer, open ocean.
Selfie with Steller sea lion underwater, Norris Rocks, Hornby Island, British Columbia, Canada.
Freediver photographing pelagic gelatinous zooplankton, adrift in the open ocean.
North Pacific humpback whales, a mother and young calf swim near scientific research divers.
Manta ray and scuba diver.
Manta ray and scuba diver.
Diver with Steller sea lions, black and white, Norris Rocks, Hornby Island, British Columbia, Canada.
Atlantic spotted dolphin, Olympic swimmer Mikako Kotani.
Blue shark and videographer.
California sea lion with diver, Sea of Cortez.
Whale shark.
California sea lion and diver, Sea of Cortez.
Ocean sunfish and photographer, open ocean.
Salp chain and diver, open ocean.
Manta ray and freediver.
Diver and garibaldi.
Diver and garibaldi, Catalina.
Tiger shark and photographer Keith Grundy.
Freediver photographing pelagic gelatinous zooplankton, adrift in the open ocean.
Atlantic spotted dolphin, Olympic swimmer Mikako Kotani, videographer Tom Fitz.
North Pacific humpback whale, active group, research diver.
Manta ray and scuba diver.
Snorkeler and manatee at Three Sisters Springs, Florida.
Snorkeler and manatee at Three Sisters Springs, Florida.
Diver and pelagic salp chain, open ocean.
Craig OConnor and his pending spearfishing world record North Pacific yellowtail (77.4 pounds), taken on a breathold dive with a band-power speargun near Abalone Point. Guadalupe Island is home to enormous yellowtail. The three most recent spearfishing world records for Northern yellowtail have been taken at Guadalupe. July 2004.