The first successful ascent of the main summit was made by Bill Denz of New Zealand on 7 October 1981, climbing the southwest buttress (west face), and descending the northwest flank. Denz did not only realise the first ascent, but also the first solo ascent and the first traverse of Kusum Kanguru. Five days later, on 12 October 1981, a Japanese team made the second ascent via the southeast face.