John Pennekamp Coral Reef State Park is located in the Florida Keys and was established in 1960 as the first underwater park in the United States. It covers approximately 70 nautical square miles and is known for its vibrant coral reefs, diverse marine life, and beautiful mangroves. Visitors can enjoy activities such as snorkeling, scuba diving, and kayaking to explore the underwater ecosystems. The park features a variety of habitats, including coral reefs, seagrass beds, and coastal wetlands. It is home to numerous species of fish, sea turtles, and other marine creatures, making it a popular destination for nature lovers and outdoor enthusiasts.