In this lake Terton Pema Lingpa, the reincarnation of Padmasambhava, was said to have discovered religious treasure in the 12th century. Mebar Tsho is less a lake and more a gorge in one of the many glistening rivers that run through Tang valley. This sacred lake is visited by many Bhutanese during auspicious days to offer butter lamps. With an extensive array of prayer flags blowing in the wind, it is known to be one of the holiest places for Buddhist pilgrimage.