Loggerhead Key, Tropical island in Monroe County, United States
Loggerhead Key is a small island in Dry Tortugas National Park, sitting in the Gulf of Mexico off the western tip of Florida, with white sand beaches and a tall lighthouse. The surrounding waters are shallow and dotted with coral reefs that shelter a wide range of tropical marine life.
The lighthouse was built in the mid-1800s to guide ships through these remote and often treacherous waters of the Gulf of Mexico. In the early 1900s, the Carnegie Institution ran a marine biology laboratory on the island, making it a center for the study of coral reefs and coastal ecosystems.
The lighthouse on the island is one of the oldest still standing in Florida and shapes the image of the place for visitors arriving by boat. Its presence gives the island a recognizable character that has drawn sailors, researchers, and curious travelers for generations.
The island can only be reached by private boat or kayak, so planning ahead is essential before setting out. There are no facilities on shore, so visitors should bring everything they need, including water, food, and sun protection.
A coral reef called Little Africa lies close to the island and is known for its dense colonies of spiny lobsters and tropical fish, yet it receives far less attention than the lighthouse or the beach. Snorkelers who make the effort to explore it often find it one of the most rewarding spots in the entire national park.
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