In reply to Tim Bateman:
The following is taken from the easyjet Website regarding prohibited items.
"The following items are not permitted in cabin baggage, but are permitted as hold luggage:
Pointed/Edged Weapons and Sharp Objects:
Ski and walking/hiking pole and crampons
Axes, ice axes, ice picks & hatchets"
From this it is crystal clear that ice climbers and trekkers can take their pointed items in their hold luggage - thank goodness.