The largest of the U.S. Virgin Islands, St. Croix is perhaps the least known to cruise passengers, and that's a shame. The island -- home to the United States' easternmost point, Point Udall -- doesn't have the duty-free attractions of St. Thomas or St. Maarten. There's no prefabricated terminal in Frederiksted, a sleepy city on the west end that has been rejuvenated with extensive waterfront landscaping. There's no Senor Frog's, no Ripley's Believe it or Not.

Instead, St. Croix features scores of nature activities and water sports, from horseback riding through the rain forest to some of the region's best scuba diving and snorkeling. History buffs will love the numerous historic attractions, such as Fort Frederik, the Estate Whim Plantation and the Christiansted National Historic Site's numerous monuments, reminders of St. Croix's Danish heritage. Those who enjoy the offbeat will be thrilled to tour the Cruzan rum distillery or feed beer to the island's famous drinking pigs. (Captain Morgan also has a facility on St. Croix.) A burgeoning food culture, anchored by the island's extensive agriculture, is becoming internationally known. And beach bums have scores of choices, both on the west end and farther afield.