These dramatic and austere mountains are a breathtaking sight. The Black Cuillins are a horseshoe-shaped range encircling the glacial trough of Loch Coruisk. Twenty sharp peaks stand over 900m high, with the highest, Sgurr Alasdair, reaching 933m. Only good climbers should attempt to scale them, but the broad valleys are good for walking, weather permitting. The Red Cuillins are pink granite mountains forming more rounded slopes.