Just east of Boyd Park and for experienced climbers only, this stretch of frozen water does not allow a top-rope, so is only navigable by clean lead climbing. After you cross the bridge, look to your left and follow the little single track into the woods. This trail is definitely not for beginners and the faint of heart; its skirts the edge of a cliff and there are lots of steep rocky grades. I nearly killed myself on it, but had an awesome time doing it. It passes through Archery Park, goes under 53, and continues a short distance.