Other routes require scrambling ability or rock climbing; while there are rock climbs directly up the flanks, the only other way of reaching the summit via a ridge is the south-west ridge, a Grade 3 scramble that begins up a scratched chimney which can be accessed from the summit of Sgùrr Sgumain or from Coir' a' Ghrunnda; there is also a slightly easier route from the top of this chimney directly up a shallow gully on the south face. The summit of Sgùrr Alasdair can be attained by a short detour (from Sgùrr Theàrlaich) off the main ridge by climbers undertaking the full traverse of the Cuillin ridge, or by those following the circuit of Coire Lagan.