This guide introduces the climber to the bouldering, traditional climbing and sports routes at Dumbarton Rock. Known to locals as 'Dumby', this is lowland Scotland's premier 'top end' rock-climbing venue, home to famous routes such as Chemin de Fer, Requiem and Rhapsody, and with a reputation for hard and technical climbing. Dumby also cradles a collection of giant boulders, which host masses of documented problems from easy to 8th grade level. Problems such as Pongo, Sabotage, Pressure, Sanction and Gutbuster are amongst Scotland's world-class bouldering test pieces.