Scuba divers off the coast of Santa Maria Island in Azores, Portugal encounter a Mola Mola (aka Ocean Sunfish or Moonfish). It is the largest known bony fish in the world and can grow up to 5,000 pounds (2,268 kilograms). Video by Portuguese diver Miguel Pereira
Located in Iceland’s Þingvellir National Park, Silfra is a rift that is part of the divergent tectonic boundary between the North American and Eurasian plates
Diver Gary Grayson has an unforgettable experience with a couple Atlantic Grey Seals while diving in the Isles of Scilly off the coast of Great Britain.
Watch freediver Guillaume Néry plunge deep into a blue hole abyss off the coast of Long Island, Bahamas. A “blue hole” is a term for a water-filled sinkhole with an entrance below water level. Seen here is Dean’s Blue Hole, the world’s deepest known salt water blue hole. It plunges 202 metres (663 ft)…