By walk we mean an easy route, essentially within everyone's reach.

By hike we mean a route that usually winds along paths.

On an equipped path there are aids for the safety of the hiker.

On a via ferrata there are aids for the progression and safety of the hiker.

We speak of climbing when the use of the hands becomes necessary for progression.

Rock climbing routes involve a climbing activity that is different from sport climbing.

Itineraries of this type include ski mountaineering routes and snowshoe routes.

Routes on glaciers or mixed terrain are generally the most challenging.

Trekking routes are generally hiking trails, that consist in several stages.

The mountain bike itineraries on trekking-etc are relatively few, but interesting.