Barbuda, Antigua and Barbuda
No matter how many beaches you've wandered, you've probably never seen anything like the particular glow of Barbuda's pink-sand beach, a 10-mile stretch of blush-colored coast. Its unique hue comes from the microscopic red shells of foraminifera, a microorganism that mixes with the crushed coral sand. Chances are you'll admire this beach alone: The low-lying sister to Antigua is one of the least-visited islands in the Caribbean and is home to just 1,600 residents. "If you can't find a stretch of beach to be alone on here, you won't be able to anywhere," says Chris Doyle, who writes a popular guide to sailing the Caribbean. For the full desert-island experience, stay at the North Beach Barbuda, a boutique five-cottage retreat that's as far removed from Jet Skis and EDM pool parties as you can get.
Getting there: Take a 25-minute flight or a 90-minute ferry ride from Antigua.