Very delicate climbing. Starts tenuously and doesn't let up. Requires a bit of patience and observation. Right hand gets to hold the arete most of the way up. If you're tired of looking at the rock just lean out right and you'll see the lake.
This route is off the far left of the Long Wall. To get to it from the main left side of the Long Wall you have to climb over a log or two and then scramble up some rocks onto a slab. This route is on the arete at the far right of this "upper" section.
Bolts. Oldish looking rings at the top.