1Puerto Rico
8.4/10Puerto Rico wins because no other island pairs this much to do (a 9) with this easy a trip (8.9 for access). Grandparents can stay in Isla Verde, on the calmest city beach, next to the airport. Teens get bioluminescent bays, El Yunque and surf lessons. Luquillo, east of San Juan, is a long sheltered beach with food kiosks beside it. At our entry prices, a week of San Juan hotel nights for two runs about $800 to $850. The catch is distance: the drive around the island takes five to six hours.
















