Here's a picture to give Dan grey hair.  One of the logistical difficulties of this trip was getting Group A's 2 vehicles shuttled from the north end of the park to the southern end.  Originally we were going pick up the Group C adults and drive them up here to pick up the cars, but since we were there anyway we figured we'd just move them now.  We only had 2 adults, but Dave, at 16, had his drivers license as well.  Since we hadn't asked Javier or Kevin if a 16 year old could drive one of their vehicles, Dan let Dave drive his while Dan and Ted drove the other two vehicles.  Thankfully there were no problems :-)