A chorten is set up to make offerings to the gods for a safe passage through the icefall and back. All the climbing gear is blessed in a simple ceremony of Tibetan chanting, food offerings and burning of juniper branches. The ID team carry ladders into the icefall and bridge any large crevasses with them. They anchor the ladders with snow stakes, ice screws and rope, and then create further ropes as a hand rail where needed. As the glacial ice can move up to a metre a day, this is extremely hazardous work - large blocks of ice can topple at any time and avalanches fall from the West Ridge of Everest. Without their work, no one would climb Everest from the south side.
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