Analysing terrain data
The exposure grade does not take into account objective hazards (stone fall, seracs, etc) but only the consequences of falling.
Low Exposure (E1): Exposure is limited to that of the slope itself. Getting hurt is still likely if the slope is steep and/or the snow is hard.
Medium Exposure (E2): As well as the slope itself, there are some obstacles (such as rock outcrops) which could aggravate injury.
High Exposure (E3): In case of a fall, death is highly likely.
Extreme Exposure (E4): Certain death in the case of a fall.
Traverse left straight from the bottom of the Blow Hole on the Glacier.
Some diagonal side-stepping is required to stay as high as possible under the permanently closed cliff area above.
Stay as high as possible due to risk of cliff and cornices.
Once it flattens out again a small rock wall will be on your right.
Navigate your way through here to the chute which follows down to the right and hooks back round to the left spitting you out near the bottom of the Sapphire Chutes in Spanky's ladder.
From Double Rubble you can also view 'The Pencil'