They never questioned that Calista was my daughter when I signed the waiver for her.  They told Zoey to go stand by her big sister...that's when it hit me:  I really am old enough to have a 17 year old!  Zoey was so excited she was hopping up and down.
 
Ready, set, climb...and she was fast!  She got a few feet higher than where she is in the picture below before she realized that there was no slide down once she got to the top.  The instructor had to climb up and help her down...and that was the end of climbing for a while.