John Pennekamp Coral Reef State Park

John Pennekamp Coral Reef State Park, established in 1963 as the first underwater park in the United States, spans approximately 70 nautical square miles of protected waters. Visitors can explore the living coral reefs via glass-bottom boat tours, which provide a window into the underwater world without getting wet, or snorkel directly among the colorful corals and marine life. The park also features mangrove trails and a small aquarium, making it a comprehensive nature experience. Its distinction lies in preserving the only living coral reef tract in the continental U.S., offering a rare glimpse into a fragile ecosystem.

Don't miss

• Take a glass-bottom boat tour to see coral formations and tropical fish without getting wet.
• Snorkel at Cannon Beach to explore a shallow reef and the historic shipwreck of the Benwood.
• Paddle through mangrove trails by kayak or canoe for a serene nature experience.

Tickets & tours

Ways to visit John Pennekamp Coral Reef State Park

Cheapest way inKey Largo Coral Reef Glass Bottom Boat Adventure4.1★ · 1,193 travelers~2 hoursFree cancellationFrom$45 per personSee dates →Most bookedKey Largo Two Reef Snorkel Tour - All Snorkel Equipment Included!4.9★ · 1,817 travelers~3 hoursFree cancellationFrom$78 per personSee dates →Private & flexibleKey Largo Snorkeling Trips & Sandbar Tours5★ · 157 travelers~3 hoursFree cancellationFrom$595 per personSee dates →