A single person traveling alone for the entire length of a journey
More than one person during any part of a journey
The Soloists Code of Integrity
Solo means being alone for the full length of the journey.
A soloist may not tack onto another team or soloist and still claim to be solo, they should be breaking trail for the majority of the route.
Encounters (eg. with a film crew) must be brief, transitory and scarce, with no exchange other than passing conversation. Encounters should not break the usual cadence of a journey
If a soloist is forced to camp next to another team due to a confined campsite (narrow valley or crevassed area etc) this should be no longer than one night unless forced to remain due to uncontrollable circumstances.