As a longtime dive boat captain, instructor and engine mechanic his fellow owners relied on, Frank Persico was a decades-long mainstay of the Long Island diving community ...

Embark on an exciting underwater adventure with our step-by-step guide to getting dive certified in the beautiful island of Koh Tao, Thailand. In this video, we explore everything you need to know ...

Enjoy an under-the-radar Caribbean destination with little to no crowds and incredible adventure activities, like volcanic hikes and reef diving.

Inside the tiny Thai island working hard to protect the sea life that put it on the map. Koh Tao might be best known for it mesmerising scuba diving spots, but what’s just as impressive is the ...

A group of Haenyeo (women divers) walk on the beach after diving on Jeju Island, South Korea, November 19, 2023. Xinhua/Shutterstock Sign up for CNN’s Wonder Theory science newsletter .