After ten months of intensive treatment Sean went into remission. His illness had turned his life upside down but he was alive. A routine check-up less than one year later sadly uncovered a tumor in Sean’s lung. This second, unrelated attack by the more aggressive Askin’s Disease was sure to end the 16-year-old's life. He was given 14 days to live. Instead of giving up, Sean bravely chose to fight again and did so for 13 long months during which he lost the function of his sick lung. He astounded the medical community for a second time when he ultimately defeated cancer once again. It was now clear to Sean that after having survived battles with two deadly cancers, no challenge in his future would ever be too great. Determined to start over and chase his dreams, Sean decided to go to college. There, he was rather known as a swimmer and outdoor enthusiast: “I wanted people to know me for who I was, not what I had been through. I did not want pity; none of the ‘poor Sean’ stuff.” Realizing how helpful his words could be for others, Sean became increasingly open about his past. Wanting to help people who were going through what he did, in 2001 he and his brother established 'The CancerClimber Association', a non-profit organization that offers hope through inspirational stories and gives adventure support grants to cancer survivors. After finding out that no cancer survivor had ever climbed Mount Everest, Sean decided to take it upon himself to be the first who did. Only eight months of training later, he reached the summit of Mount Everest and in the name of his organization buried a flag on the top that bared the names of people touched by cancer. Driven to make an even larger impact, Sean set as his goal to climbe the Seven Summits – the highest mountain on each of the world’s seven continents. After five years of climbing, in 2007, Sean finally achieved his incredible goal planting his seventh CancerClimber flag on Alaska’s Mount Denali. This was still not enough. In 2008, Sean accomplished another unbelievable feat; he completed The Ironman World Championship in Hawaii.
Today, Sean continues his quest of inspiration by traveling across the globe giving life-changing talks. He is still an avid mountaineer and is now aiming to travel to the North and South Poles – always spreading his “keep climbing” message.