In this file handout photograph released on May 18, 2011, Nepalese climber Apa Sherpa - who holds the record for the number of times Mount Everest has been climbed - unfurls a Nepalese national flag on the summit of Mount Everest on May 11, 2011.  Apa Sherpa, the Nepalese climber who has conquered Mount Everest a record 21 times, said May 28, 2011 that his latest ascent of the world's highest peak would be his last. The 51-year-old father of three, dubbed the “Super Sherpa” for the apparent ease with which he climbs, said he wanted to give younger mountaineers a chance, but that he would not be abandoning the sport altogether.   AFP PHOTO