Gomphu Kora is located 23 kilometers north of Tashigang district en route to Yangtse district. Gomphu translates to meditation cave and Kora means circumambulation. According to the legend, an evil spirit escaped from Tibet and concealed himself inside a rock where Gomphu kora stands today. Guru Rinpoche, Buddhist saint followed the evil spirit. The evil spirit turned itself into a terrifying snake and confronted the great saint. Guru then manifested into a Garuda and captured the snake. The evil spirit is also said to have blasted the rocks from within to create an escape path which can still be seen today. Following this event, Guru sanctified the place and predicted that devotees will congregate at Gomphu Kora for millennium to celebrate the triumph of good over evil.
As prophesied in the 8th century, every spring from 8th to 10th day of the second lunar month, people from across the eastern region come together to celebrate the festival. People from the neighboring Indian state of Arunachal Pradesh travel on foot for days to join the event.