Water Island Adventures (Water Island. 340/714-2186 or 340/775-5770. www.waterislandadventures.com) offers a cycling adventure to the USVI's "newest" Virgin. You take a ferry ride from the West Indian Company dock near Havensight Mall to Water Island before jumping on a Cannondale mountain bike for a 90-minute tour over rolling hills on dirt and paved roads. Explore the remains of the Sea Cliff Hotel, the inspiration for Herman Wouk's book Don't Stop the Carnival, then take a cooling swim at beautiful Honeymoon Beach. Helmets, water, a guide, juices, and ferry fare are included in the $65 cost.