hi all: i have been talking with my niece and nephew about our upcoming trip and my niece (11) really wants to do the coasters and other rides that my nephew (7) is too short for or he is scared. i was thinking about the mariner's club for him at RPR while my niece and i did those things. can anyone give me details on the service. such as cost, activities available, how long you can leave kids there. things like that? thanks!