We have been bringing our daughter to Negril since she was 18 months, she is now 6. She's been swimming since she was 3yo, on her own, treading water, etc. I would get her a" learn to swim tube trainer" It's a tube that is attached to a shirt. We have a pool and have all of our friends get one for their little ones. Each one of them has thanked us for the suggestion. It allows the child to learn to use their arms and legs in the water while allowing them to be more independent. Be sure to inflate it before you get to Negril with a bike pump. Also a good sun hat (love coolibar website) and sunglasses.