Nanga Parbat Attempt and Tragedy. A seven-man Japanese expedition led by Motumu Omiya arrived in the Diamir valley in early October. After climbing Ganalo Peak West (6290 meters, 20,637 feet), they turned to Nanga Parbat on October 20. They established seven high camps. They gave up the attempt when Hiromi Kameda fell to his death in early December.