I dont know about the horeseback riding, our 3 ds have done it, you can get a helmet and must sign all the forms etc. The horses are almost coma like as another poster said. They just follow in the line, no trotting etc. I do know that our oldest ds was a little too old for the fishing trip and couldnt go with his younger brothers and was upset, That age max is 12. Well when dh took them to the dock, the captain let oldest ds come on. So I guess it depends on the person etc. If you are not staying on site , would they have any actual record of your childs dob.