Beneath an unassuming town in Missouri is the world's largest subterranean lake. 457,000 square feet of diving await along ...

Did you know the Great Blue Hole in Belize is huge? It’s 318 meters (1,043 feet) wide and goes down 124 meters (407 feet).

Bonaire’s legendary shore diving sites, such as Salt Pier, earned it first place in the category. A weedy scorpionfish makes ...

Our survey asked readers to rank any operator they’ve dived with in the past two years and to rank the best operator overall.