With North America’s only living coral barrier reef stretching alongside the length of The Florida Keys (located just five miles offshore) diving and snorkeling is some of the most diverse in the world, attracting novice and expert divers from across the globe. The Florida Keys boast the first undersea park in history – John Pennekamp State Park in Key Largo, a location also known as the “Diving Capital of the World.”
For Florida Keys Diving/Snorkeling, please select an island location:

Key LargoTavernierIslamoradaDuck KeyMarathonKey West

Key Largo

Key Largo has been protected from spear fishing and coral collection for four decades and is an integral portion of the 2,800-square-nautical-mile Florida Keys National Marine Sanctuary six miles offshore. Key Largo also features six unique Sanctuary Preservation Areas (SPA’s) where even hook and line fishing is prohibited.

  • Key Largo snorkeling/diving sites include: Spiegel Grove (wreck dive), Christ of the Abyss, Molasses Reef, Benwood Wreck, The Elbow, Bibb and Duane


Quiscence Diving Services

(305) 451-2440
Mile Marker 103.5 Bayside
103680 Overseas Hwy, Key Largo, FL 33037

John Pennekamp Coral Reef State Park

(305) 451-6300
Mile Marker 102.5 Oceanside
102601 Overseas Hwy, Key Largo, FL 33037
Pennekamp Park preserves a portion of the only living coral reef in the continental United States. Catch a glimpse of a variety of tropical marine life in or out of the water aboard their glass-bottom boat tours and snorkeling/diving charters. Visitors have access to 50 miles of natural mangrove channels in the surrounding area with kayak and paddle board rentals. You can rent a boat or bring your own and make use of their launch ramp, trailer storage, slip space and pump-out services.

Rainbow Reef Dive Center

(305) 451-7171
Mile Marker 100 Oceanside
100 Ocean Dr, Key Largo, FL 33037

BlueWater Divers

(305) 453-9600
Mile Marker 100 Oceanside
99701 Overseas Hwy, Key Largo, FL 33037

Sea Dwellers Dive Center of Key Largo

(800) 451-3640
Mile Marker 100 Oceanside
105 Laguna Ave, Key Largo, FL 33037




Conch Republic Divers

(305) 852-1655
Mile Marker 91 Bayside
90800 Overseas Hwy Ste 9, Tavernier, FL 33070

Florida Keys Dive Center

(305) 852-4599
Mile Marker 90.5 Oceanside
90451 Old Hwy, Tavernier, FL 33070



Islamorada offers a wide variety of shallow coral reefs, mini walls, shipwrecks, and even an underwater habitat for scientific research, the Aquarius.

  • Islamorada snorkeling/diving sites include: The Eagle (wreck dive), Davis Reef, Alligator Reef (marked by a 136-foot-tall lighthouse), Conch Reef.


Clearly Unique Charters

(305) 900-6498
Mile Marker 83.5 Oceanside
Whale Harbor, 83413 Overseas Hwy, Islamorada, FL 33036

Sea Monkeys Water Sports

(305) 664-4555
Mile Marker 80.5 Bayside
80461 Overseas Hwy, Islamorada, FL 33036

Key Dives

(305) 664-2211
Mile Marker 80 Bayside
79851 Overseas Hwy, Islamorada, FL 33036


(305) 664-8070
Mile Marker 77.5 Bayside
77522 Overseas Hwy, Islamorada, FL 33036


Duck Key


Dive Duck Key

(305) 743-9633
Mile Marker 61 Oceanside
61 Hawks Cay Blvd, Marathon, FL 33050

Solé Watersports

(305) 209-9959
Mile Marker 61 Oceanside
61 Hawks Cay Blvd, Duck Key, FL 33050



Marathon’s reefs offer great variety in coral formations and fish life. The crystalline waters of the Atlantic Ocean reveal a marine wilderness comprised of an extensive spur-and-groove coral complex and numerous well-developed patch reefs. Each reef is populated by a vast array of Caribbean tropical fish and invertebrates, with the fascinating addition of both modern and historical shipwrecks to complete the tremendous sport dive appeal of the region.

  • Marathon snorkeling/diving sites include: Adelaide Baker, Sombrero Reef, Coffin’s Patch, Delta Shoals and The Thunderbolt


A Deep Blue Scuba Diving & Snorkeling Center

(305) 743-2421
Mile Marker 53.5 Oceanside
400 Sadowski Causeway, Key Colony Beach, FL 33051

Captain Hook’s Marina & Dive Center

(305) 743-2444
Mile Marker 53 Oceanside
11833 Overseas Hwy, Marathon, FL 33050

Tilden’s Scuba Center

(305) 743-7255
Mile Marker 49.5 Gulfside
4650 Overseas Hwy, Marathon, FL 33050


Key West & Lower Keys

Key West’s largest and most pristine reefs are located several miles off shore and are best visited with the help of professional dive and snorkel charter services.

The Lower Keys are the least developed of the Florida Keys and in many ways the most natural. The most notable location for Key West diving and snorkeling is the Looe Key National Marine Sanctuary. In 1981, Looe Key reef was designated a national Marine Sanctuary, prohibiting all spear fishing, coral collection, and lobstering. As a result, large schools of friendly fish and a complete reef ecosystem remain preserved.

  • Key West snorkeling/diving sites include: Sand Key (marked by a large iron lighthouse and more than 10 miles of coral reefs of varying depths), Joe’s Tug, Ten-Fathom Ledge, The Cayman Salvor, Nine Foot Stake, Kedge Ledge and The Atocha


Lost Reef Adventures

(305) 296-9737
261 Margaret St #6639, Key West, FL 33040

Southpoint Divers

(305) 292-9778
606 Front St, Key West, FL 33040

Captain’s Corner Dive Center

(305) 296-8865
125 Ann St, Key West, FL 33040

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