As I was watching it, I thought, "we ought to do videos like this for orienteering." An orienteering could easily include some interesting images and rough conditions.
Cyclocross and orienteering have some of the same appeal. Both are tough sports that attract fairly small crowds. There is definitely some overlap among competitors. That's local orienteering legend Mean Gene racing cyclocross below.
The two sports have some big differences. Cyclocross is an equipment sport. Orienteering isn't. Cyclocross is easy to explain and most people will understand it ("it is an off road bike race"). Orienteering isn't like that. Cyclocross is a good name. Orienteering is not.