Do the DR — i.e., the Dominican Republic — on a Caribbean cruise with Holland America Line. Stroll Santo Domingo’s Old Town, the Americas’ first city and a UNESCO World Heritage Site; or venture beyond to taste Ron Barceló rums. In Amber Cove, adrenaline junkies can power snorkel off the coast with an underwater scooter or canyoneer in Damajagua National Park, while Cruise With Purpose tours let you give back at a paper recycling micro-business and chocolate cooperative, both founded by women.