The Upper Mustang trek is remote trans-Himalayan mountain area trek and one of the amazing trekking destination in Nepal. During trek you can find Tibetan feel, both in its people and culture and in its arid landscape of high cliffs and rocks of unusual formations.
Upper Mustang trekking is one of the different experience. During the upper mustang trekking you can also explore Tiji Festival as added advantage for you to explore mustang during colorful festival. You can experience trekking comes festival vibes during that time. Tiji festival is a fascinating annual three-day festival consisting of Tibetan rituals that celebrate the myth of a son who had to save the Mustang kingdom from destruction. The festival is indigenous to Lo-Manthang, Upper Mustang. Over the Mustang Tenchi Festival time monks dressed in elaborate costumes and masks perform dances and rituals that are supposed to drive away evil spirits. The Tiji festival dances are all organized by the Choedhe Monastery, which belongs to the Sakya sect of Buddhism. The monastery is headed by a Rimpoche. About 65 monks from Lo Manthang, Nhenyul and Chhosyer reside in this monastery.
So, you can make plan for upper mustang trek with or without Tiji festival.