While there's plenty to so in Charlotte Amalie on land, it would be a great loss not to explore the underwater wonders of the U.S. Virgin Islands. The easiest thing to do is rent a snorkel and explore the shallow waters by the beach, but you should definitely consider trying something more advanced at least once. Snorkelling is the cheapest choice. Add some diving equipment to go deeper and see more. Some tours now offer Sea Trek helmets — a modern take on the diving helmet. No matter your choice of equipment, do explore the coral reefs that are home to tropical fish such as snapper, hamlets, parrot fish, sturgeon, squirrel fish and majestic sea turtles.

The sister island, Gozo, is well worth a visit on its own. Hire a car or book one-of-the-day jeep safari trips that are offered by multiple tour operators. Upon disembarking, you'll immediately notice the difference between the islands. Gozo has a more serene atmosphere and is packed with lush farms. While you're here, don't miss the Citadel in Victoria, the Saltpans, the Inland Sea, and the cliff where the Azure Window (formerly one of the most famous landmarks of Malta) once stood before its collapse in early 2017.

Located a short walk from Largo do Senado, along cobbled lanes, is the broad stone staircase leading to the beautiful ruins of St Paul Basilica. The original 1602 church was destroyed by a fire in 1835 but is still considered a symbol of Macau. The crypt and nave house a religious museum.