lost and found Surfer finds lost 52-year-old Rolex underwater, returns the still-ticking watch to original owner Rusty Blazenhoff

Science Walking upside down on the ceiling of a frozen lake in Finland Elías Villoro

Science Interview with a professional sewage diver Popkin

diving Amazing video of a guy doing a perfect dive off of a waterslide Jennifer Sandlin

History Excavating the underwater wreckage of sunken Trans-Atlantic slave ships Thom Dunn

olympics How Olympic divers make such minimal splashes and why they use such tiny towels David Pescovitz

Science Building the world's biggest and deepest swimming pool… for science! David Pescovitz

swimming This is the deepest swimming pool in the world David Pescovitz

sports Watch freediver Andrey Matveenko descend 119 meters on one breath Andrea James

diving NTSB determines dive boat operator to blame for horrific fire and deaths Jason Weisberger

music Singer/Songwriter Kirsty MacColl was killed 19 years ago this week Séamus Bellamy

Science Look at this majestic school of hammerhead sharks ready to mate David Pescovitz

video Watch these trippy freedivers go underwater caving Andrea James

construction Every terrifying detail of what it's like to work as a saturation diver Andrea James

Kids Watch this freediver find a crystal-clear spring under Florida swamp gunk Andrea James

pollution Diver encounters underwater trash cloud Rob Beschizza

arizona Treasure-hunting diver finds a phone and returns it to its owner Rusty Blazenhoff

diving The Deepest Dive of My Dreams Richard Kaufman

video Watch some free diving beneath ice for your daily dose of NOPE Andrea James

california Abalone diving season is off to a hazardous start in California Jason Weisberger