Gomphu Kora at Trashiyangtse :

Gomphu means "Meditation Cave" and Kora means circumambulation.  Hundreds of devotees visit this sacred please which comes alive once every year in spring. The people all over Eastern Bhutan descend on the narrow valley, dressed in their finery, to partake in the festivity to worship and to reaffirm their connection with the past. The festival even draws the the Dakpa tribe from neighbouring Arunachal Pradesh(India). Some say the Dakpas have done this for more than a millennium, beginning shortly after Guru Padmasambhava Sanctified the place in 8th century AD and prophesied that devotees will flock to Gomphu Kora for eons to celebrate the triumph of good over evil.