Eruç's human-powered circumnavigation plan was expanded to include summitting the tallest mountains on six continents as a tribute to his friend and fellow adventurer Göran Kropp who died in 2002 while climbing with Eruç in Vantage, Washington. Eruç named his expedition the Six Summits Project. So far he has summitted three of the peaks including Denali (also known as Mount McKinley) in North America on 29 May 2003 more than four years before he began his solo circumnavigation, then Mount Kosciuszko in Australia on 10 April 2010, and Mount Kilimanjaro in Africa on 14 June 2011 during the circumnavigation. Eruç still plans to climb the remaining three mountains on future journeys: Mount Everest in Asia, Mount Elbrus in Europe and Aconcagua in South America.