John Pennekamp Coral Reef State Park is a Florida State Park located on Key Largo in Florida. It includes approximately 70 nautical square miles (240 km²) of adjacent Atlantic Ocean waters. The park is approximately 25 miles in length and extends 3 miles into the Atlantic Ocean. It was the first underwater park in the United States. The park was added to the National Register of Historic Places on April 14, 1972. The primary attractions of the park are the coral reefs and their associated marine life.
Looe Key is a coral reef located within the Florida Keys National Marine Sanctuary. It lies to the south of Big Pine Key. This reef is within a Sanctuary Preservation Area (SPA). Part of Looe Key is designated as "Research Only," an area which protects some of the patch reefs landward of the main reef.
Eastern Dry Rocks is a coral reef located within the Florida Keys National Marine Sanctuary. It lies seven miles southeast of Key West and one mile east of Sand Key light within the Key West National Wildlife Refuge. This reef is within a Sanctuary Preservation Area (SPA).
Molasses Reef is a coral reef located within the Florida Keys National Marine Sanctuary. It lies to the southeast of Key Largo, within the Key Largo Existing Management Area, which is immediately to the east of John Pennekamp Coral Reef State Park. This reef is within a Sanctuary Preservation Area (SPA).
Carysfort is a coral reef located within the Florida Keys National Marine Sanctuary. It lies to the east of Key Largo, within the Key Largo Existing Management Area, which is immediately to the east of John Pennekamp Coral Reef State Park. This reef is within a Sanctuary Preservation Area (SPA). The reef is northeast of The Elbow.
The Elbow is a coral reef located within the Florida Keys National Marine Sanctuary. It lies to the east of Key Largo, within the Key Largo Existing Management Area, which is immediately to the east of John Pennekamp Coral Reef State Park. This reef is within a Sanctuary Preservation Area (SPA). The Elbow is southwest of Carysfort and east of Dry Rocks reefs.
Grecian Rocks is a coral reef located within the Florida Keys National Marine Sanctuary. It lies to the east of Key Largo, within the Key Largo Existing Management Area, which is immediately to the east of John Pennekamp Coral Reef State Park. This reef is within a Sanctuary Preservation Area (SPA).
French Reef is a coral reef located within the Florida Keys National Marine Sanctuary. It lies 11 km southeast of Key Largo, within the Key Largo Existing Management Area, which is immediately to the east of John Pennekamp Coral Reef State Park. French Reef is northeast of Molasses Reef. Part of the reef lies within a Sanctuary Preservation Area (SPA), which is 37 ha in area. A number of caves and arches in a spur and groove formation are included in the SPA.
Pickles Reef is a small coral reef located within the Florida Keys National Marine Sanctuary. It lies to the southeast of Key Largo, to the south the Key Largo Existing Management Area and John Pennekamp Coral Reef State Park. Unlike many reefs within the Sanctuary, this reef is not within a Sanctuary Preservation Area (SPA).
Conch Reef is a coral reef located within the Florida Keys National Marine Sanctuary. It lies to the southeast of Plantation Key. This reef is within a Sanctuary Preservation Area (SPA). Adjacent to the SPA is a "Research Only" zone and the Aquarius underwater laboratory is at the center of the zone. Outside of these zones is Conch Wall, a deep wall reef.
Davis Reef is a coral reef located within the Florida Keys National Marine Sanctuary. It lies to the southeast of Plantation Key. This reef lies within a Sanctuary Preservation Area (SPA).
Hen and Chickens is a shallow coral reef located within the Florida Keys National Marine Sanctuary. For a while in the 20th century it was marked by the Hen and Chickens Shoal Light It lies to the southeast of Plantation Key. This reef lies within a Sanctuary Preservation Area (SPA).
Cheeca Rocks is a shallow coral reef located within the Florida Keys National Marine Sanctuary. It lies approximately one mile to the southeast of Upper Matecumbe Key. This reef lies within a Sanctuary Preservation Area (SPA).
Alligator Reef is a coral reef located within the Florida Keys National Marine Sanctuary. It lies to the southeast of Upper Matecumbe Key. This reef lies within a Sanctuary Preservation Area (SPA).
Coffins Patch is a shallow coral reef located within the Florida Keys National Marine Sanctuary. It lies to the southeast of Bamboo Key. This reef lies within a Sanctuary Preservation Area (SPA).
Rock Key is a coral reef located within the Florida Keys National Marine Sanctuary. It lies to the southwest of Key West, within the Key West National Wildlife Refuge. This reef is within a Sanctuary Preservation Area (SPA).
Sand Key is a coral reef located within the Florida Keys National Marine Sanctuary. It lies to the southwest of Key West, within the Key West National Wildlife Refuge. This reef is within a Sanctuary Preservation Area (SPA).
9-foot Stake is a coral reef located within the Florida Keys National Marine Sanctuary. It lies to the south of Key West, and is west of Marker 32 reef. Unlike many reefs in the Sanctuary, it is not within a Sanctuary Preservation Area (SPA).
Snapper Ledge is a small coral reef located within the Florida Keys National Marine Sanctuary. It lies to the southeast of Key Largo, to the south the Key Largo Existing Management Area and John Pennekamp Coral Reef State Park. Unlike many reefs within the Sanctuary, this reef is not within a Sanctuary Preservation Area (SPA). It is near Pickles Reef. Since 2009, the Coral Restoration Foundation has used Snapper Ledge as a nursery site to grow Elkhorn Coral.
Turtle Reef is a coral reef situated at the northern extremity of the Turtle Rocks shoal, and located within the Florida Keys National Marine Sanctuary. It lies to the east of Key Largo, within the Key Largo Existing Management Area, which is immediately to the east of John Pennekamp Coral Reef State Park. Unlike many reefs within the National Marine Sanctuary, this reef is not within a Sanctuary Preservation Area (SPA). The reef is north of Carysfort Reef.
