We camped at Pot Creek 1, Limestone, and Jones Hole 3. It seemed to me like pot Creek was worst - but that might just be because it was our night to make dinner. They were present at all of them in enough numbers to cause some arm flapping. Not swarms of 100's, but definitely 25-50 YJs very interested in the kitchen happenings and beer cans. If you have a choice, Jones Hole 4 looked like the best beach of those camps - the rest of the Jones camps were rocky because of the low water.