General admission costs $29 for adults and $17 for kids. For more information, check out Coral World's website. Snorkel St. John Tour from Sapphire and Margaritaville (1730 reviews) ...

John Pennekamp Coral Reef State Park was developed in 1963 as the United States' first park under the sea. The state park is 25 miles long and 3 miles wide, and it is home to many aquatic plant ...

At John Pennekamp, the first undersea state park in America ... then hop in the clear blue waters. The variety of fish and coral at a depth of only a few feet is incredible. Of particular note is the ...