My daughters are 4 and 6 and both are small for their age. Both went on this past May. They put a wrostband on my little one and when she got up to the CM seating us in the raft, he put her in a special seat. Each raft has one special seat and an adult must sit next to them. They had a ball and got very wet!!! There is a compartment in the center of the raft to put your personal items. It keeps them from getting wet.