Orienteering is a sport where competitors navigate their way between control points marked on a specially drawn map. The main strand of orienteering of interest to runners is called foot orienteering, other disciplines such as mountain bike orienteering or ski orienteering also exist. Foot orienteering itself comes in several different lengths from sprints (2k) to long-o (20k) and in different forms, cross-country, score and relay. For the most part it is cross-country, middle-distance running in a woodland or moorland setting.