12m. The layback crack to the left of colonels arete's 1st pitch, directly underneath the large oak and mossy groove.
Good gear in the crack leads to a very mossy struggle around the tree. For the full esoteric experience, should be done in the winter to absorb as much moisture as possible and for some nervy bridging. Finish up Colonels Arete remaining pitches.
Derek Billings, Rod Pullen 30/Dec/2018.
* This newly updated climb is waiting to be checked by the crag moderator.