The Spanish named this island “Cayo Vivora” or Viper Key because its shape resembles a snake with its jaws open. In the early 20th century, Long Key was the site of a luxurious fishing resort that was destroyed during the Labor Day Hurricane of 1935. Today, visitors can explore this island by kayaking through a chain of lagoons or hiking two land-based trails. The Golden Orb Trail leads visitors through five natural communities to an observation tower that provides a panoramic view of the island and its profusion of plant and animal life. Some of the best bonefishing in the Keys is found here. Full-facility campsites overlook the Atlantic Ocean. Located at Mile Marker 67.5, 67400 Overseas Highway.