Situated in the north of Trashiyantse, it is the home of a flock of Black-necked Cranes that migrate from Tibet in winter. This place is also known for its exceptional woodcraft.
Built in Nepalese style based on the copy of Boudhanath stupa in Nepal by Lama Ngawang Loday in 1740. The main statue in the temple is of Guru Rinpoche. It is said that one eight year old girl from Arunachal Pradesh sacrificed her life by entering the stupa during its construction. In her memory, the people of Arunachal Pradesh still visit every year for kora (circumambulation) during the great religious festivals that are held in mid-March. Also masses of people from all parts of the eastern region come to mark these celebrations, particularly from Merak and Sakten valleys.
It is about a 24 km drive from Trashigang, on the road towards Trashiyangtse. Situated on a small alluvial plateau overlooking the river, it is one of the sacred places where Guru Rinpoche meditated in order to subdue a demon that dwelt in the big rock. The temple is renowned for its festival held in the 2nd lunar month.
The old Dzong was established in 1656 and was fully renovated in 1976. Since the old Dzong was small and difficult to get to, a new Dzong was built on the side of a ridge overlooking the valley and was inaugurated in 1997. Now, it is the administrative centre of the district.