Those who think of the Florida Keys as miles of sandy beaches have much to learn about our southern Florida archipelago. Each year, about four million people visit the Florida Keys, a 150-mile chain of tropical islands known for its diving, seagrass beds, mysterious mangrove forests, lush hardwood hammocks, rocky pinelands, and both fresh and saltwater wetlands (but not miles of sandy beaches). The Florida Keys explores the extraordinary beauty of this ecological treasure in stunning color photos as well as threats of over-development and pollution. Chapter topics include formation of the area, geology, impact of climate, ocean currents and hurricanes, living things in each ecosystem, and human impact. Also recommended: Florida: The Natural Wonders, The Florida Everglades, Sanibel Island, Sea Turtles, Alligators & Crocodiles.