We just returned from the Holiday Cruise 8-29-09, and we had a blast on the Twister - Isla Pasion cruise. The open bar seemed to have a good variety of booze, although I drank magritas. The mexican buffet was yummy......the beach was amazing. The trampoline is free, the kayaking is included.....I think. There was also another bar - hut you could purchase other alcohol and beer from. Massages were expensive.
They had 3 huts for shopping which was cool.