Screamer is a relatively new activity at Camp Champions. It's basically two very tall poles (60ft) connected horizontally with a top wire. In the middle of that horizontal wire is a vertical wire that drops down to almost ground level to which a Camper is attached. Camper gets pulled to one end from his fellow campers via a pulley system, then self-releases for quite a swing.
Non-HDR shot of one Camper enjoying the backswing after a release.
Camp Champions, Texas.