Isla de Caja de Muertos, a place to find endangered birds, turtles, and marine life is an uninhabited island of Puerto Rico known for its hiking, snorkeling, birding, and peace. The cays of Cayo Morrillito and Cayo Berberia are the popular tourist attraction of the island. Voted for “The Ten Enchanting Natural Attractions of Puerto Rico”, the island is one of Puerto Rico’s popular Nature Reserves. A 1.5-hour drive from San Juan, tourists as well as locals from San Juan, Ponce, and the south coast are the ones to have a common visit to Isla de Caja de Muertos.