Balloon Festival? That could be fun.
Where is the group cruise? Bear Lake, or GSL? That sounds like fun.
I have anchored at Bear Lake on the East shore when my son was at scout camp. We used the boat with the troop and had a great time. The lake bed was rocky and I was constantly looking to see if there was slippage when the wind would pick up.
I have never anchored at the GSL. When the water was higher, my brother and I went to the marina on the North end of Antelope Island and stayed there. That was fun too. Now the Antelope Island Marina is dry. I am not sure it will ever be serviceable again.
I am renting a slip at Bear Lake the middle of August. That should be fun. Between now and then, I hope to drop it in the GSL for a few weeks to run around in the evenings.