John Pennekamp Coral Reef State Park is America’s first underwater park, offering visitors the chance to explore the only living coral barrier reef in the continental United States. Located in Key Largo, Florida, the park spans approximately 70 nautical square miles and protects a vibrant marine ecosystem filled with colorful coral formations, tropical fish, sea turtles, and other marine life. Established in 1963, it’s a paradise for snorkelers, divers, kayakers, and anyone who wants to experience the beauty of the Florida Keys both above and below the water.
The park was established in 1963 and named after John D. Pennekamp, a Miami newspaper editor and conservationist who played a pivotal role in preserving Florida’s coral reefs. Its creation was part of a broader movement to protect marine environments from overfishing, pollution, and unchecked development. The park’s unique blend of natural wonders and historical artifacts, such as shipwrecks, tells the story of Florida’s maritime heritage and the ongoing efforts to safeguard its delicate ecosystems.
Entrance fees vary depending on the type of vehicle or activity:
Reservations for boat tours, snorkeling, and diving are highly recommended, especially during weekends and holidays.
The park is open year-round, but the best conditions for water clarity and calm seas are typically from late spring to early fall. Winter months can bring cooler water temperatures and stronger winds, but they’re also less crowded. Early morning trips often offer the calmest waters and the best wildlife sightings.
Key Largo offers plenty to explore beyond the park. Visit the Florida Keys Wild Bird Rehabilitation Center, sample fresh seafood at local dockside restaurants, or explore the nearby Florida Keys National Marine Sanctuary. Islamorada, just a short drive south, is another hotspot for fishing charters, art galleries, and sunset views.
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