- Alpine (Commitment) III
- Alpine (Mt Cook) 2
From the hut Shipowner Ridge is followed to 70m below its junction with the North West Ridge, from where easy snow immediately below the rock on the north side leads around to the lower, level, gendarme-studded section of the North West Ridge. All the gendarmes may be turned or traversed easily. As the ridge starts to rise towards the big rock step of the buttress a prominent sloping slab leads out and around on to the Therma Face. After a short, steep pitch a series of ledges and intervening rock steps may be traversed on an ascending diagonal line until the ridge is regained at the level section above the buttress (2400m). Alternatively a route may be made directly up the Therma Face of the buttress and then along the crest of the ridge. Above the buttress a broad easy angled ridge of snow or slabby rock leads to the ice cap and the short, but narrow and exposed summit ridge. This route can be accessed from the Bonar Glacier by traversing north 400m.