Make sure you visit Virgin Islands National Park, especially since it takes up most of the island. It has some of the most beautiful beaches and landscape in the world. The Visitor Center at Cruz Bay has exibits with atural and cultural examples of fish and coral, in addition to a history of the native population. Artifacts from the pre-Columbian Tainos, and tools from the sugar production era on displayed, too. There's a museum of the Historical Society nearby as well. Check out the archeology lab in an old sugar factory at Cinnamon Bay. And enjoy the beaches!