On Saturday, 8/3 a kayaker ran the left side of Foul-Up Falls(aka Lost & Found) unh the Upper Yough in MD.. This is not the normal line. There is a tree across the channel and a big undercut rock. The paddler went totally in under the undercut. A Keel Hauler, Scott Debalski observed him disapear. He was in the eddy behind the rock, he jumped out of his kayak leaving it float away. Once on the rock he saw nothing. He then saw a helmet under the water and pulled on it and a head surfaced far enough for him to grab his PFD and pull the hapless kayaker from his boat and out from under the undercut. Eventually the boat was retrieved.  
DO NOT RUN THE LEFT SIDE.