Lhakhang Nagpo or Black Temple in Haa valley is one of the two temples built by the Tibetan Emperor Songtsen Gampo in the 7th century. Legend has it that the Emperor released two doves, white and black from his heart to find auspicious locations to build the temples. The place where the black dove landed is where the black temple, the Lhakhang Nagpo was built. And where the white bird landed is where the white temple or the Lhakhang Karpo was built.
The Black Temple is said to have been built on top of a lake and there is a doorway on the floor of the temple inside that is believed to be a passage to the underworld of the water spirit (tshomen/mermaid). The temple also has a shrine of the local diety Dado Chen. This is a mysterious place with lots of myths and legends and probably one of the oldest temples in Bhutan. It is one of the best places to visit in Haa valley.
Located close to the huge Lhakhang Karpo (white temple) complex, the Black temple is about 15 minutes walk following the footpath above the White temple. You also have the option to drive to the temple but the walk is really enjoyable. It is a highly recommended place to visit in Haa valley.