Just sitting here w/ my sister, who has been to the Caribbean numerous times ... I'll be in St. John next week for my first time ever (1st time ever in the Caribbean!). We want to take an excursion to the other islands, but she had an experience once (not in St. John) where the snorkeling excursion she was on ended up being a drinking free-for-all. People were loaded, jumping off the boat, and she couldn't believe the crew actually allowed people to get drunk and go off the boat like that. By the trip back people were actually vomiting off the side. Yikes!!! Now I'm thinking it's smart to ask folks in advance what the chances might be of this happening in St. John. Has anyone had this experience?