Scuba diver exploring vibrant coral reef underwater.

Diving & Snorkeling

Dip beneath the surface and meet The Florida Keys’ wild side. Here you’ll find the continental United States’ only living-coral barrier reef—shallow gardens for snorkelers, dramatic reefs and historic wrecks for divers. Expect clear, turquoise water, colorful schools of reef fish, and the occasional sea turtle cruising by like it owns the place. Whether you’re booking a guided trip or heading out from shore, outfitters across the Keys make it easy to gear up, learn the basics, and go. Fins on, worries off.

Select Your Interest

Diving & Snorkeling

Shipwrecks

Diving & Snorkeling

Dive into more details about this activity with points of interest and tips for users at every skill level.

Underwater scene with yellow fish near coral reef, diver in the background.

Diving & Snorkeling Information

All the details you need: videos, regulations and tips to make your Florida Keys diving or snorkeling outing safe, fun and memorable.

Diver holding a lobster underwater, wearing snorkel and flippers.

Florida Keys Lobster Season

Every year, thousands of locals and visitors dive into spiny lobster season, a favorite Florida Keys tradition. The Florida Fish and Wildlife...

Scuba diver swimming through a shipwreck window.

Reefs, Wrecks & Wonder

The Florida Keys are basically one long, sunny invitation to put on fins and go look at something amazing underwater. Reefs? Yes. Wrecks? Plenty. Colorful fish acting like they own the place? Absolutely.

Underwater statue with arms raised, diver in snorkel gear nearby.

Christ of the Deep

Spiegel Grove fish Florida Keys artificial reef

Diving Tips from Keys Pros

Lighthouse on clear turquoise sea with boats in the distance.

Florida Keys National Marine Sanctuary

Scuba divers exploring colorful coral reef underwater.

Learn To Dive in the Florida Keys

Underwater statue of Christ with arms raised, bathed in blue light.

Key Largo: A Dive Wonderland

To understand why Key Largo, the northernmost island in the Florida Keys, holds such a revered position in the dive pantheon, it is important first to...

Marathon

Crazy Banana Charter

Premier private fishing charters and scenic sunset cruises in Marathon and the Florida Keys — target mahi, tuna, wahoo and more with expert captains.

Marathon

Aqua Leisure Boat Tours

Aqua Leisure Boat Tours offers private, all-inclusive charters with licensed captains, providing a 25-foot Cobia deck boat equipped for snorkeling, sunset cruises, sandbar trips, and more, accommodating up to 6 guests.

Marathon

The Tackle Box

A Marathon tackle shop that has been in the same old post office building since the 1950s, open 7 to 5 every day with live shrimp, pinfish and crabs in the tanks. They will also clean and repair your reel, spool your line properly, and book you a charter.

Marathon

Ocean Equipment / Scuba Equipment Plus

Ocean Equipment: marine hardware & parts provider supporting boating needs, repair, and equipment sourcing in the Keys.

Marathon

Better Than Most SCUBA

Better Than Most SCUBA is a family-run dive center in Marathon offering all levels of SCUBA instruction, guided reef dives, snorkeling, private charters, spearfishing, and lobstering—everything you need for an unforgettable Florida Keys dive adventure.

Marathon

Living Like Larry Charters

Private boat charters in the Florida Keys for unforgettable ocean adventures.

Marathon

Adventure Boat Tours

Adventure Boat Tours takes visitors out from Marathon for snorkeling at Sombrero Reef and laid-back sunset eco-history cruises. Slip into the clear water over living coral, then watch the sky light up on the ride home through the Florida Keys.