The U.S. Virgin Islands are composed of three very different islands: St. Thomas, St. Croix, and St. John. In this episode, the Simmons family is hunting down the very best that each has to offer. On St. Thomas, they discover a pirate-y past at Blackbeard's Castle before diving below the waves on a real submarine. On St. Croix, sugar cane reigns supreme as they tour an old plantation and a rum factory. On St. John, green is keen as they hunker down in tents at an eco-camp and explore the Virgin Islands National Park. The British Virgin Islands are known as the Caribbean's best kept secret, and the Simmons soon find out why. Tortola's sweeping green mountains provide a dramatic backdrop to hidden coves like Cane Garden Bay. Trips to West End to learn about Tortola's pirating past and to the south shore to come face-to-face with dolphins complete this island paradise. Next, it's off to Virgin Gorda where giant boulders provide plenty of hidden pools and grottoes to explore.