300m. Obvious gill disecting the north face of Combe Ghyll. Climbing gear essential. Recommended only in extremely rare dry-ish conditions. Head up gill to a steep mossy fall (can be passed by right wall). Two short waterfalls lead to a black dripping cave - if semi-pro slime specialist climb this direct, otherwise escape by right wall and out of the gill to traverse back in above the cave. A capstone above a short fall is overcome by going under capstone and exiting strenously on right wall. Another cascade awaits, always wet, it is climbed direct on good holds; be wary of loose rock. The upper ravine now beckons, although another small cave, headed by a large capstone must be overcome. Climb on the left via a sturdy wedged chockstone to trend rightwards and enter the upper ravine, which is steady thereafter.