Binn Mhór is also climbed as part of the Maamturks Challenge, a 25-kilometre 10-12 hour walk over the full Maumturks range (from Maam Cross to Leenaun), which is considered one of the great classic ridge-walks of Ireland, but of extreme grade due to the circa 7,600 feet of total ascent. Since 1975, the University College Galway Mountaineering Club has run the annual Maamturks Challenge Walk (MCW), and man a checkpoint in the Máméan pass; climbers descend from Binn Mhór at 661 metres to Máméan at only 150 metres, before re-ascending to Binn Chaonaigh at 633 metres.