Thinking about signing up for Arizona/Utah this summer with dd(7). Was kind of waiting to see the age make-up of the groups. I'm also worried about the heat in July.
I actually called today and they said there are 20 people signed up so far, with kids who will be 4 and up on the trip (most in the 10/11 range). I'm excited because it seems as though this week is unlikely to be cancelled.