Hi a few questions, as we have never went on a cruise before. We are booked precruise to stay at Hotel Galvez and I know they offer a shuttle to the port. How should we get from Houston (IAH) to Hotel Galvez? Family of 4, 1 in a car seat. And obviously back again? Any companies you recommend? Xcaret-worth doing? we have a 7yo and 3yo. and are the dolphin excursions really worth it? Thinking of doing that one, but just not sure. thank you!! I would appreciate and all input related to these questions or any other advice!