Dive Pennekamp Coral Reef State Park

Dive John Pennekamp Coral Reef State Park | Key Largo Scuba & Snorkeling

Diving and snorkeling in John Pennekamp Coral Reef State Park offers access to some of the most iconic and protected reef systems in the Florida Keys. Known as the first undersea park in the United States, this destination combines rich history with exceptional marine biodiversity, making it a must-visit for divers and snorkelers alike.

Located in Key Largo, this area serves as a gateway to the Florida Keys reef tract and the broader sanctuary system that protects these vibrant underwater ecosystems.

The History Behind Pennekamp Park

The park is named after John Pennekamp, a conservationist and associate editor of the Miami Herald who played a key role in early environmental protection efforts in South Florida.

• In 1946, Pennekamp proposed expanding Everglades protection to include Key Largo and surrounding reefs
• Early resistance from landowners and local government delayed protection efforts
• Despite the establishment of Everglades National Park in 1948, reefs remained unprotected and suffered environmental damage

Significant progress came in 1959 when Leroy Collins granted protection to nearshore waters, followed by a major milestone in 1960 when Dwight D Eisenhower transferred federal offshore lands to the state.

Later that year, John Pennekamp Coral Reef State Park was officially dedicated.

Growth & Expansion of the Park

• Initially established with just 75 acres of water
• Expanded through land donations, including contributions from Radford Crane and his family
• Now encompasses approximately 90 square miles of protected marine area

Today, it remains one of the most significant marine conservation areas in the United States.

Connection to the National Marine Sanctuary

The evolution of marine protection continued with the creation of the National Marine Sanctuary Program, following the establishment of the National Oceanic and Atmospheric Administration in 1970.

• The Key Largo National Marine Sanctuary became one of the first designated sites
• Management of offshore reefs shifted to federal oversight beyond the 3-mile state boundary
• The sanctuary system now protects vast marine ecosystems across the U.S.

Despite these changes, Pennekamp remains a foundational part of the Florida Keys’ conservation legacy.

Diving & Snorkeling Experience

Today, the reefs surrounding Pennekamp Park are among the most popular dive destinations in the world.

• Access to vibrant coral reefs and marine habitats
• Ideal conditions for both scuba diving and snorkeling
• Close proximity to Key Largo dive sites (typically within short boat rides)
• Protected waters that support diverse marine life

From shallow reef exploration to deeper offshore dives, the area offers something for every experience level.

Why Dive Pennekamp in Key Largo

• First undersea park in the United States
• Rich conservation history and protected marine environment
• Part of the world-famous Florida Keys reef system
• Accessible dive and snorkel sites for all skill levels
• Located in the “Dive Capital of the World”

With millions of visitors annually and thousands entering the water each year, this destination continues to define scuba diving in the Florida Keys.

Plan Your Key Largo Diving Adventure

Experience the reefs that helped shape marine conservation in the United States and discover why Key Largo remains one of the top diving destinations in the world.