The massive chock stone is the easiest feature to spot. The trail goes right over top before following a winding trail above the gorge. In winter you approach this spot from southern side of the gorge.
It is common for serac fall to occur off the Vulture Glacier. It is possible to stay well clear of this as the chunks rarely get as far as the track up to the hut. All the same, standard group risk strategies for overhead hazards should be observed.
Having a map and compass is essential for this route because visibility often becomes poor. In the valley there are few good landmarks, so you will need to basically follow a bearing, time it, and then head north and use the cliffs as a handrail.