Norwegian mountaineer Kristin Harila has successfully completed the 'Triple Crown Challenge' by climbing Mount Everest without supplemental oxygen. This climb by Harila, who holds the record for the fastest ascent of 14 mountains above 8,000 meters in the world, is seen as a significant achievement of this season.

The climb of Mount Everest was completed at 8:45 am on Wednesday, according to the expedition organizer Seven Summit Treks. Along with Harila, her long-term climbing partners and climbers of 14 mountains above 8,000 meters, Mingtemba Sherpa and Dukpa Sherpa also successfully reached the summit.

Earlier, Harila and Mingtemba Sherpa had climbed Nupse on 2083 Jestha 3 and Lhotse on 2083 Jestha 7 using oxygen. After successfully climbing all three mountains, they have completed this year's 'Triple Crown Challenge'. 

The 'Triple Crown Challenge' is a very difficult and prestigious challenge in mountaineering, under which climbers must successfully climb three technical and 8,000-meter mountains in a single season - Nupse Mountain, Lhotse Mountain and Everest. 

These mountains are among the most challenging climbs in the world due to their high risk, difficult weather, technical rocky and snowy routes. Since climbing three mountains in a short period of time requires physical endurance, high mountain experience and special skills in weather management, the 'Triple Crown' is considered a great achievement in mountaineering.