From Phil’s Bivvy
From Phil's Bivvy drop down and across the basin towards the main waterfall below the North Buttress of Sabre, which usually has a large avalanche cone at its base. Cross the stream 100m down from the foot of the waterfall to slabs on the north side, climbing these to a narrow ledge leading left, up and across a grassy gut to a short rock slab. At the top go left to a short waterfall and then diagonally right up a rock ramp to a large terrace. Take the second gully at the right-hand end to the foot of the North Buttress, then continue to Sabre Adelaide Col, or head right over rock and snow to the Marian Sabre Col.
The col north of Adelaide gives a route to the Gunn Basin and the now overgrown track down to the Hollyford Valley.