In 2001 he undertook an expedition to the most difficult mountain in the world K2, which climbed to a height of 8000 meters . The biggest success was the ascent without oxygen on Mount Everest in 2002. In 2004, climbed Kilimanjaro, Elbrus, Mount McKinley and Vinson Massif, in 2005, Puncak Jaya, Mount Kosciuszko and Aconcagua . The first Czechoslovak and second in the world and climbed without oxygen seven highest peaks in the project Seven Summits.