We have five nights at the Occidental Grand in Nuevo Vallarta, traveling with two older teens. They typically do ziplining and jet skiing during port stops on our cruise vacations. Just wondering if I need to spend the money here or if our relatively short stay would be adequately filled by activities right on our beach and at our hotel? Vallarta Adventures offers a 3 for the price of two deal, but that's a lot of time away from the resort. Opinions?