On the hike from the parking lot to the zoo entrance, I heard...."I'm hot....I'm tired....how much further?"....so I knew I was in for a real treat for the day walking around with happy, overjoyed children.  So I made the decision to pay the extra $9 and shoved them both into a stroller. Luckily JT, decided for the most part to be a big kid and walk - but it was nice to have a place for him to "hang" if he got tired!