Cabo Rosa, also known as "Los Tuneles", is located one hour from Puerto Villamil, Isabela Island. The crystalline waters make it the perfect snorkeling location. Over the years this site has become a marine wildlife refuge for sea turtles, marine iguanas, sea lions, and blue-footed boobies. The cold, nutrient-rich waters also provide an ideal habitat for the Galapagos penguin that can be found in the area.