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 ...

John Pennekamp Coral Reef State Park's entrance is located off U.S. 1 at mile marker 102.5. For an $8 vehicle fee, plus 50 cents per occupant, you'll enter a Florida state park where you can only ...

At Key Largo, John Pennekamp Coral Reef State Park is home to the largest diving site in the whole United States and a marine ...

At John Pennekamp, the first undersea state ... park entry fee per vehicle and equipment rental if you need it), take a relaxing boat ride to one of the most pristine snorkeling spots imaginable, then ...