Tropical retreat wreathed by talcum-fine beaches with luxe overwater villas, an on-site dive center and an organic spa Constance Halaveli epitomizes the tropical island vacation. A private expanse of beach studded with oversize bean bags? Check. An on-site PADI dive center and easy access to shipwrecks, caves and coral reefs teeming with whale sharks and manta rays? Double check. There’s a heavy focus on the alfresco, with outdoor dining and villas that have wooden balconies with steps that descend straight into the ocean. It’s a magnet for the honeymoon crowd, to be sure, but this upscale resort also caters to travelers with tots in tow.