As usual, the parents were much more fearful than their daughter, who insisted on going alone.
She did let Mama and Papa go with her before we left. After watching the older kids use cardboard, she grabbed some cardboard and went down the smaller slides with it. She tried small pieces, big pieces, holding on, not holding on - whatever it takes to get that extra burst of speed.
The first time she did this, it caught me completely by surprise! I was worried she'd fall and I ran over. Our little daredevil had no problems, of course.