We also went to the first block party on July 5th and were pleasantly surprised. The free carnival games and video games kept the young ones busy. We got there right when it started and I was glad we did. By five or so, there were lines at all the carnival and arcade games and the line for the massage was so long, we didn't bother waiting for it. Had a great time though, spent the whole two hours there and then went to the clubs later on that night. We had DS20, 18 and 13 with us. We got the wristbands and then had to go into a club with them so that they could get their hands stamped. It was no problem bringing DS13 with us to the comedy club and the older ones went on their own.
Definitely worth stopping by!