Whatever you do, DO NOT tip on the boozecruise. Wait till you land on the island. I tipped the guy 20 us dollers because I had two girls with me for some shots and he refused to give no more than one. I kept bugging him about it so he grabbed one more shot cup and poured half of the one drink in the other and said "Here two shots". Well that was 20 bucks down the drain for two shots. That whole boat trip was a joke...but once we got on the island I had shots galore!!!!!!