Goliath grouper spawning, manatee snorkeling, freshwater springs, shark diving: it's all here, and this is when you can do it.

Zapote Cenote, nicknamed Hells Bells, gives divers the chance to get up close and personal with a rare underwater phenomenon.

These are the greatest places to explore unique geologic formations, according to our annual Readers Choice survey.

Wrecks litter Carlisle Bay Marine Park, giving shore divers an easily accessible playground 24/7.

Dive the jewel of the Pacific with Explorer Ventures Fleet.

Explore everything they Keys have to offer and meet new dive buddies from September 3 to 9 with PADI Club.

Worthwhile wrecks and reefs stretch from Pensacola to Panama City.

Dive glaciers, meet a leopard seal and spot nesting penguins with these stunning images from the Seiko Watch Antarctica expedition.

A Cabo Pulmo shark encounter becomes so much more when California divers sense the presence of their missing friend.