Green blankets the undulating curves of hilly St. Thomas, the primary port in the US Virgin Islands. Half-moon beaches slide seamlessly into aquamarine waters at the shore's edge before darkening over reefs and the deep-sea, while equally bright colors and sophisticated boutiques line the main street of the capitol, Charlotte Amalie.

Shop duty-free and local markets when you've soaked up your sun for the day, or stretch you land legs on a historic walking tour around Government Hill and the buildings around Emancipation Garden. For stunning views out over the island, ride the aerial cable car up to Paradise Point, then lunch in Frenchtown, a few miles from Charlotte Amalie.

If you've not sailed to St. Thomas in your own yacht, try an afternoon charter trip out of Red Hook's harbor, or rent a powerboat and captain your own vessel. For those who prefer to stay swimming distance from shore, join a guided kayak tour for mangroves and secluded snorkeling spots.

Try beaches along the north shore, like family-oriented Magens Bay, for a relaxing soak, or test your mask for leaks snorkeling around Sugar Bay and Secret Harbor. Rent all sorts of water toys at Coki Point or other resort beaches dotting the coast. If you want a look at the undersea world but aren't keen on getting wet, try Coral World Ocean Park on the northeast end of St. Thomas for a glimpse of sharks and sea-life in aquarium-style accommodations.

Ferries run regularly to neighboring island, St. John, three miles east of St. Thomas.