Thank you! I looked at the dolphin excursion at each port, but failed to notice the age limits. I definitely want to do one, so I'm looking more closely now. Grandma said "no" to dolphins because they scare her. She doesn't want to just stand on the side watching everyone else. So, we may have to go without her. She told DH, "no excursions involving water and nothing too strenuous." I told him that those are very narrow parameters for a Caribbean cruiseThere was a nice kids dolphin adventure that we considered and they have an observer for that so all of the kiddos and you guys could swim with the dolphins and grandma could watch. It was on cozumel. We considered it because it was the only one our 3 yr old could do.