Horseshoe, and Brine Line levels -the extreme river left side channel. Starts with the Flume, a big slide into a wall, followed by a hole. Then, sneak far left
A 10-foot sluice into a super-powerful hole surrounded by underwater sieves. It’s named after Charlie Crowley, who escaped by crawling out along the bottom (bursting both eardrums in the process). This line used to be run regularly by boofing left into the eddy, but after numerous close calls and one fatality almost nobody runs it anymore. There is very little margin for error.