To truly experience the diverse landscape of St. Croix, the largest of the U.S. Virgin Islands, a stay of 5 to 7 days is highly recommended. Unlike the smaller island of St. John, St. Croix is 84 square miles and divided into two distinct districts: the historic Danish colonial town of Christiansted on the east and the laid-back, sunset-heavy Frederiksted on the west. A 5-day itinerary allows you to dedicate one full day to the world-class snorkeling at Buck Island Reef National Monument, a day for exploring the Cruzan or Captain Morgan rum distilleries, and time for the rugged "Rainforest" drives on the west end. If you stay for a full week, you can also hike to the tidal pools at Annaly Bay, visit Point Udall (the easternmost point of the U.S.), and enjoy the island's thriving "farm-to-table" food scene without feeling rushed. St. Croix has a more "local" and unhurried vibe than St. Thomas, so a longer stay allows you to adjust to "island time" and discover the hidden beaches and historic sugar mill ruins that make this underrated Caribbean gem so unique for 2026 travelers.