I took Amy and Tommy to a park that was primarily slides. Tommy mostly watched Amy play and Amy did things like climbing open rung ladders that impressed me to all ends. She had such a good time that she threw a royal tantrum when it was time to go. She arched her back to stay out of the car seat, rolled out of it and sat in the regular seat determined not to get into the car seat. I've never seen her act this way over not wanting to leave.