KEY LARGO, Fla. - Fifty years after it was designated the first underwater park in the U.S., John Pennekamp Coral Reef State Park looks much as it did when it was founded: Tropical fish swim through ...

The first undersea park in the United States, Pennekamp was created in 1963 by a group of forward-thinking environmentalists (including the late Miami newspaper editor John D. Pennekamp) to help save ...

Visitors relax on Cannon Beach at John Pennekamp Coral Reef State Park in Key Largo, Fla. Besides being the nation’s first underwater preserve, Pennekamp features two beaches, a campground, boat ...