Mark had a passion and love of the outdoors from childhood. He started work at Mt Cook as a trainee ranger but with his love of mountaineering, soon became one of the regions professional Search and Rescue Mountaineers. In November 1982, Mark and climbing partner Philip Doole became trapped near the summit of Mt Cook in a storm that was to last 13-and-a-half days. The resulting stay in the ice cave - now known as Middle Peak Hotel - resulted in both men almost losing their lives. Mark was forced to change his career as a result of the loss of both his legs to frostbite.
In the 1990’s and 2000s Mark competed in national and international Disabled Alpine Skiing and became a Paralympian in 2000, securing New Zealand’s first Para Olympic medal in the Cycling Road Race.
On May 16, 2006 Mark became the first double amputee to conquer Mt Everest. Mark completed his climb on two carbon-fibre artificial legs especially adapted for climbing. He snapped one of them early on in the climb but with the help of his climbing colleagues he was able to repair it and continue the ascent.
Mark is the founding trustee for Limbs4All Charitable Trust, which is committed to helping some of the 400 million disabled people in the world to express their potential by supporting projects and individuals both within New Zealand and worldwide, and is also an ambassador for Outward Bound amongst various other projects and charities.
Mark has presented to over 200,000 people across the world, inspiring them to embrace challenge, to develop the attitude to excel. Mark leads one to three treks to Nepal each year to raise funds and awareness for Limbs4All projects in Nepal and Cambodia. Challenge and attitude is at the core of all growth, in our families, communities and businesses. Mark is the epitome of Challenge and Attitude. As the only double amputee who has stood on the summit of Mt Everest, who else can truly define the often used saying, 'Attitude determines your Altitude'.