There are about 590 graded rock climbing routes on the South side of the gorge, which are generally open to climbers between 1 October and 15 March each year. The North side of the gorge has about 380 climbing routes and the land is predominantly owned by the National Trust and mapped as Open Access land which give a right of access for climbers all year. Each of the routes is named and included in the British Mountaineering Council guidebook. Although the majority of the climbs are "trad" or "traditional", which means that the leader places protection as they go up, there are also some "sport" routes where bolts are left in place. Climber Chris Bonington was the first to scale the Coronation Street route in 1965.
