I've read several posts about the awesome snorkling trips, and my husband and I are really interested in going next week when we're in the area. I'm prone to motion sickness, however, and I'd hate to get sick on the boat. Are the seas likely to be rough this time of year? I plan to bring Dramamine, ginger capsules 200mg, and other things to prevent motion sickness, so I'm thinking by using those and watching what I eat and drink that day, I'll be ok. I guess I'm just looking for some reassurement here. Thanks in advance!