In reply to Nic DW: Climbed Umbrella Falls and Salmon Leap yesterday. Both had lots of ice, but with a crusty aerated snow layer on top of the flatter surfaces which had to be cleared by the leader, and was hard work. The Corrie was slightly sheltered from the easterly wind, though this caused a lot of updrafts, and made for a very cold day.
We fitted threads to both routes, though we rapped across to the first belay on Poachers, (after finishing Salmon Leap), and used it to get to the Corrie, as the initial groove on Salmon Leap was very snowy and belays difficult to find. Very little exposed rock on both routes so used mainly screws. The ice is sometimes brittle on the surface, and can dinnerplate under tool placements, so clear the surface crud before placing screws.
There is evidence of some small avalanches off some of the terraces in the Corrie, though nothing recent. The debris on the snow under Poachers has all come from people knocking stuff off Poachers & Salmon Leap.
Once you find the approach path up to the Corrie from the main track, it will take you straight to the Corrie and is very solid underfoot. We got up without using crampons, but found them essential on the descent due to the many small frozen burns on the hillside.
Happy Climbing.