The Mani Rimdu festival is the most significant celebration for the Sherpa people in the Everest region, lasting nine days during October and November. It involves chanting and blessings, symbolized by a red medication. Celebrated at Tengboche Monastery, a hub for Everest treks, the festival features a sand mandala, dances, and shows performed by Buddhist monks and Sherpas. Thousands of trekkers, attracted by the ideal October-November trekking season, join the festivities. The festival ends with a blessing ceremony, symbolizing the triumph of good over evil. Mani Rimdu has not only become a cultural highlight but has also boosted trekking and mountaineering in the Everest region.