We’ll be departing from an altitude of 4,681m, climbing to the peak of 5,895m, where the temperature is likely to be as cold as -18°C to -29°C (0°F to -15°F)

The final climb will be in pitch dark, zig-zagging our way from the camp to Gilman’s Point, hopefully in time to watch the sunrise.

With only the faint light from our headlamps to see, we’ll be imitating zombies as we shuffle slowly and breathlessly towards the peak.