This beach lies near Esperanza named Sun Bay. Sun Bay is owned by Puerto Rico National Parks and is the only beach on Vieques with public facilities. There is a two dollar per vehicle fee for parking. Facilities include bathrooms, outdoor showers, public telephones and water fountains. It is over a mile of turquoise water and white sand beaches,lined with coconut palm and sea grape trees. During much of the year it is virtually empty. Only for a few weeks of the year, are there ever more than a hundred people at any given time at the beach. If that's too crowded, you can follow the road through Sun Bay to Media Luna Beach and further on to Navio Beach. Media Luna is a great beach for children , as the water is very shallow and there is copious amounts of shade. Navio is well known for its bodysurfing, but there are limited areas to escape the sun.
There are beaches (you can find a beach with a black sand) in La Hueca in the southwest (hard to get to-no beach roads, and no parking roadside), but beyond that on the same road is the old base on the western end where ther are many private areas along that southwest coast.
East of the airport on the north coast is Gringo Beach (good snorkeling-next to the W hotel), and there are beaches in Bravos de Boston (very little parking) and east of there (towards the dump) with good snorkeling, but a difficult water entry in some areas (coral and sea urchins).
The best beaches, of course, are on the old bases.As of May 1st, 2003 Vieques has gotten back many of it's beaches. The U.S. Fish & Wildlife Preserve has become the caretaker of most of the former military property and it is now the largest Wildlife National Park in the Caribbean.
The best known beach on the western end, Green beach, has some of the best snorkeling at 
its southern end and with the full opening of that end, there are paved roads which allow you full exploration of the southwest coast of the island as well with many new and previously inaccessible beaches. The view of the main island of Puerto Rico is also spectacular from Green Beach. There are also beaches along either side of Mosquito Pier.The Mosquito Pier is a popular spot for divers and it is located on the north east side of Vieques Island. I found a couple of locals fishing with their kids, and they told me that fishing at night is great. The future plan is to create a “short route” to the town of Ceiba, Puerto Rico. The view from the pier is stunning. You can see the beautiful coast and really appreciate just how marvelous the vegetation in this island really is, the view is simply breathtaking. Get ready to take great pictures along the pier, great site to watch birds, I found many pelicans and birds along the coast. There are some beaches along the area that are great for bathing.
On the south side is Playa Grande Beach.
On the eastern end of the island, the beaches are only accessible during daylight hours, but you don't want to be on the beaches in the late afternoon when the no-see-ums start biting anyway.
The better known beaches have very original military names like Red, Blue, Purple, and Garcia Beach, but there is also Secret Beach, which was so named by the few people who knew how to get there. Needless to say, It's not a secret anymore.
Playa de la Chiva or as it was named by the Navy (Blue Beach) is one of our favorites for snorkeling and for holding hands in an afternoon beach walk. The water is very clear, you can see the bottom very clearly and schools of tiny little tropical fish tickling your feet. Blue Beach is very long so it is easy to find a your own spot. During your vacation in Vieques, don't leave the island without at least taking a peak at this very "BLUE" bleach. You will see so many shades of blue that it's no wonder the Navy named it "Blue Beach".
There are also great beaches and many favorites on the main part of the island. Those beaches don't belong to the National Park property. Many of them are easily accessible, easy on you and your vehicle, and not far from food and drink. Did I mention that they're not crowded most of the time either? Sun Bay is still the most beautiful beach on the island in my opinion. Some others are mentioned above and others can be found in Bravos de Boston, Monte Santo Playa, and La Hueca.
Come to Vieques... and see the Caribbean the way nature intended it to be.
Explore the vast variety of magnificent beaches with clear blue and turquoise waters and sand ranging from pure white to baby powder soft black that sparkles with the sun. Vieques is a small Caribbean island but there are many beaches to explore including one of the brigthest Bioluminescent bay in the world. Truly an amazing experience! There are several tour operators on Vieques through which you can arrange a visit to the Bio Bay either by kayak or on an electrically powered boat.
VIEQUES bioluminescent bay