In 1968, Dingle and Murray Jones were the first to climb all six major European north faces and the Bonati pillar, including Eiger and Matterhorn, in one season. He has achieved over 200 mountaineering and adventure firsts worldwide, including first ascents of mountains and faces in the Himalayas, the Andes, and in New Zealand. Dingle made the first traverse of the Himalayas, a distance of some 5000 km, in 265 days. He has made a 28,000 km traverse of the Arctic, the first winter traverse of the Southern Alps taking 100 days, and the first transit of the Northwest Passage by snow machine.