One of the Caribbean’s true gems, St. Barts is where Riviera chic meets Caribbean cool. Day-trippers come from nearby islands for the duty-free shopping, excellent dining and to lounge on the soft, white sands in a secluded palm-fringed cove. Tour Fort Gustav and Fort Carl, historic reminders of Sweden’s short-lived Caribbean possession. Excursions abound, inviting guests to snorkel, sail over the clear blue waters on a catamaran, or horseback ride through shaded jungle trails.