On a recent and very foggy morning, I met the small team of Ghost Diving USA at the 22nd Street landing in San Pedro. They’re the local chapter of a global mission to clean up ghost nets ...

Snorkeling in crystal clear reefs offers a unique glimpse into the colorful underwater world. It allows you to discover the ...

From a ballet of white-tip reef sharks to a cardinal fish releasing freshly hatched babies from its mouth, these underwater ...

“He released a shimmering trail of tiny microbubbles from his plumage, coating himself with a lubricating layer of air to cut drag and maximize speed,” Crosby said. “Perhaps most enchantingly, ...

A company called DEEP has published plans to create a base underwater that could support ... up to 200 meters beneath the surface of the ocean; it is expected to accommodate six or more people.