"Serenity is easy to come by on the private-island resort of Petit St. Vincent, a 115-acre property from the 1960s. It recently underwent a multimillion-dollar renovation but retains its original charms—there are no cars or in-room televisions (and don’t even think about WiFi) in the 22 cottages and suites, and anything you might need arrives at your doorstep with the simple raise of a yellow flag. A Balinese-inspired spa soothes the body, while two open-air yoga pavilions quiet the mind. If you’re looking for more action, you can explore the island’s pristine reef formations with expert divers through Jean-Michel Cousteau’s only Caribbean scuba center, or rent one of four yachts to catch local mahi mahi—then have the chefs prepare it for you beachside back at the resort."