Subscribe Now! National Geographic Magazine $15
Visit our Online Shops

Sign up for free


Once a month
get new photos
and expert tips.

Florida Keys

Picture: Florida Keys

The islands in the Florida Keys span 126 miles (200 kilometers) and are home to the most extensive living coral reef in the United States, and the third largest on Earth.

Just south of the Florida peninsula, the Florida Keys National Marine Sanctuary covers 3,708 square miles (9,600 square kilometers).

The region receives more than 4 million visitors a year who come to dive, explore coral reefs and shipwrecks, and fish.

Beyond tourism, the Keys support a nearly 20-million-pound (9-million-kilogram) harvest of seafood and marine products annually. In an effort to protect the ecological and commercial resources in the park, the area was designated a national sanctuary in 1990.

Photograph by Emory Kristof

Habitats Topics


Photo: Montana

Enter Sweepstakes

Take a photographic journey through Montana and enter to win a trip!

Photo: 2009 Winner

Photo Contest

Find out who takes home the Grand Prize!

For Kids! Creature Features

Image: Creature Features logo

Click to learn more about animals and their habitats.

Lesson Plan: Using Ocean Maps

Image: Xpeditions logo

Find a variety of geography lesson plans and activities for all age groups.