I just returned from Belize and if I may suggest, DO THE CAVE TUBING. It rocked!!! I would go tomorrow and do it again. No questions asked. Carnival's tour guides were fantastic and made the excursion very memorable. Since you are with a group; one caution though, there is some walking involved for approx 45-minutes or so. Its really neat though because you are hiking thru a real rain forest. Do this excursion, it is so worth the money once you are floating down the river. Warn the guys though...the water is a little chilly at first. Have fun!!!