More than 60% of Vieques is covered by the Vieques National Wildlife Refuge, which includes several beaches, bays, mangrove forests, salt flats, and trails. Spend the day hiking, bird-watching, beach-hopping, kayaking, sailing, diving, paddleboarding, or horseback riding, depending on your mood.
Surrounded by mangrove and protected from the open ocean, Mosquito Bay has been recognized the Guinness Book of World Records for being the brightest bioluminescent bay in the world. The trippy glowing phenomenon is courtesy of millions of microorganisms called dinoflagellates that use thier ability to "light up" as a protection mechanism when disturbed. Add to that the fact that Vieques expereinces almost no light pollution and your experience on the bay goes from magical to mythical.
Fortín Conde de Mirasol is a small fort that sits on a hill, providing a fantastic view of the mainland and nearby cays. Although never completed, this was the last fort built by the Spaniards in the Americas. It now houses an art and history museum, and hosts the Historic Archives along with a radio station