For sixty years the majority of Vieques was closed off by the US Navy, and the island remained almost entirely undeveloped for tourism. This lack of development is now marketed as a key attraction. Vieques is promoted under an ecotourism banner as a sleepy, unspoiled island of rural "old world" charm and pristine deserted beaches, and is rapidly becoming a popular destination.
Snorkeling is excellent, especially at Blue Beach (Bahía de la Chiva). Aside from archeological sites, such as La Hueca, and deserted beaches, a unique feature of Vieques is the presence of two pristine bioluminescent bays, including Mosquito Bay.
In 2011, TripAdvisor listed Vieques among the Top 25 Beaches in the World, writing "If you prefer your beaches without the accompanying commercial developments, Isla de Vieques is your tanning turf, with more than 40 beaches and not one traffic light."