Altitude: 1372m to 1526m. Gain: 433m. Loss: 382m . Gradient: 9 deg (Moderate)
Skills: Alpine weather (2/7) Winter - Iceaxe/crampons (4/7)
From the Kylie Bic turnoff the ridgeline and route head due west, climbing over Tupari summit, before skirting the head of a series of slips above the basin to its south. The track frequently leads onto these slips which are gravel-on-rock and dangerous. Stay on the ridgeline or scrubby western side, and avoid temptation to try the east.
South of here a good ground trail becomes established along the narrow ridgeline, though the track is still unmarked. Several saddles and summits must be crossed, with good water available at the tarn 1km north of Ina Rock.
A signposted track junction on Te Atua Mahuru marks the top of the Colenso Spur track from Barlow Hut / Makaroro River to the east.