We are heading to AC for our second trip on Thursday with our 6 year old. We were also there with him when he was 4 and had a great time! Just like Debbie said you do like normally at home and it will be fine. I must say we felt COMPLETELY at ease and that is why we are going back. Just a note we had him on the Lamanai <spelling?> trip and he loved it. Also spent a half a day fishing with him, another good choice. We have traveled extensively to other places and I must say that AC was very "kid friendly"! Have a great trip!