Dear Dawn,
Boy that sounds really close. I guess you could either beg with the attendant at the boat rental desk, or just say that your son is twelve. We thought briefly about that idea but realized that we would be sending the wrong idea to our son. We wanted to teach him to always tell the truth even if it means missing out on something. Your son though, sounds like he will be a lot closer to the age requirement. By the way, my son ended up having a great time anyway just riding! Good luck and have a great trip!