Much off piste is on glacier. Crevasses
are frequently covered in snow, sometimes not enough to carry a person.
Just because one person has crossed a crevasse does not mean the bridge
will hold for the next person. Tracks are not a guarantee of safety.
Following a group in the belief that they know where they are going may
be mis-guided. Also, this practice may anger members of the group.
A guide will add greatly to a group's safety by avoiding dangers and in
the event of an incident, with the equipment, knowledge and
communications to respond appropriately.
Everyone should ensure that their actions do not endanger others.
If any of this info is new, either hire a guide or take a one day course in Glacier Travel and Avalanche Awareness.