22. St. Lucia

Distance from NYC: 4 hours and 50 minutes

Average hotel room cost: $343 per night 

In St. Lucia, you can experience modern sites and luxury resorts, or delve into old plantations and hidden beaches. Its sulfur springs are ideal for DIY spa treatments, while intimate beaches like Anse Mamin give you the chance to experience your own private paradise. The island has 168 different activities and a moderate beach-density score of 0.26.