John Pennekamp Coral Reef State Park
Mangrove Nature Trail Closure
The Mangrove Trail is closed for safety while repairs are being made to the boardwalk. We thank you for your patience while work is being done to improve your park experience.
Welcome to John Pennekamp Coral Reef State Park
Key Largo’s John Pennekamp Coral Reef State Park is one of a kind, offering an amazing glimpse into the underwater world.
As the nations first undersea park, Pennekamp allows visitors to explore its protected coral reefs via glass bottom boat or with a snorkel and mask.
The reefs are teeming with sea life, as is the 30,000 gallon salt water aquarium in the visitor’s center. Mangrove swamps and tropical hammocks add diversity to this amazing park.
The first undersea park in the United States, John Pennekamp Coral Reef State Park encompasses approximately 70 nautical square miles. While the mangrove swamps and tropical hammocks in the park's upland areas offer visitors a unique experience, it is the coral reefs and their associated marine life that bring most visitors to the park.
Many enjoy the view of the reef from a glass-bottom boat tour, but visitors can get a closer look by scuba diving or snorkeling. Canoeing and kayaking through the park's waters are popular activities; fishing is permitted in designated areas.
Visitors can enjoy walking on short trails, picnicking, or swimming at the beach. The Visitor Center has a 30,000-gallon saltwater aquarium and nature videos are shown in its theater. Full-facility and Youth/Group campsites are available. Beach wheelchairs are available without cost.