I went about 5 years ago to the Radio 1 weekend there and it was dangerously full, no question. As soon as were we in we were jammed together and swept along in a sea of people. My GF was petrified and I was seriously worried for both our safety. We tried to leave immediately but in the end we found a small area right at the back where the fire exits are and stayed there. I've never experienced anything like it.Ooof, Tiesto at Pacha in 2012 was a SERIOUS sweat box