The quick ferry ride to the island of St. John whisks you away from St. Thomas' bustle to a quieter, more natural island. The Virgin Islands National Park occupies about two-thirds of the island, insuring it remains as lightly developed as it is. The ferry ride from Red Hook is air-conditioned and comfortable with TV cartoons airing to keep the kids occupied. It lands some 20 minutes later at the docks at Cruz Bay, the island's main town. From there you can walk to a number of fun shops and good restaurants and bars as well as the national park visitors center. Or hop aboard one of the safari surreys that await in the town plaza for transport to St. John's gorgeous beaches. The most lauded, Trunk Bay has an underwater snorkeling trail. Along the island's climbing road you'll see breathtaking views, donkeys, sugar mill ruins and mongooses.