To understand what is tree climbing is necessary to know the meaning of the English name of this activity. In English language, canopy is called canopy, that translated to the letter, that is to say cover / awning. And here is the essence of the activity of tree climbing: to walk a path in the forest awning, that is, a platform suspended in the height of the treetops. Tree climbing can have both a contemplative and a sporting function. In its sporting modality, and of course, the one that interests us the most, the arborismo is mounted with obstacles and to overcome them the “arvorista” needs to use basic concepts of climbing, abseiling, manoeuvres with ropes and to overcome the fear of the height, if it is the case.