"A mile-and-a-half off Puerto Rico’s east coast, Cayo Icacos makes for an ideal day trip from Fajardo or San Juan and is reachable by water taxi or private catamaran in about 20 minutes; as part of La Cordillera Nature Reserve, the uninhabited cay offers white sand, turquoise water, and ample marine life for snorkelers, but no facilities, so pack accordingly. " - Nicole Kliest