Here’s where to sail when you think you’ve already seen it all.

It’s the globe-trotting version of choosing a gift for the person who has everything: finding the next destination for the traveler who’s been everywhere. “Avid cruisers have already done most Caribbean ports, for instance,” says Clare Keimig, a Virtuoso travel advisor. “If you’re looking for tropical, you get tired of going to the same places all the time.”

Enter the “destination dupe,” a term some wags have coined for alternatives to the tried-and-true. Here are four top swaps for beloved ports around the globe.