Ramon's might fit the bill. Or small condo type places like The Palms (right next door to Ramon's), Banana Beach, Banyan Bay, Blue Tang, Exotic Caye. There are many choices. You'd probably be better off at one of these than Brianna's judging from what you say. Once they get into the swing of island life (and catch a few rays
) , they will probably even enjoy the excursions. Most of the excursions start by boat - great place to work on a tan!