In addition to paces of interest in Paro, Thimphu  and Punkha, another fascinating destination is the sacred valley of Bumtang. The picturesque drive to Bumtang takes you through regions profuse in flora and fauna, several magnificent mountain passes and places of great historic sights and ancient palaces of the ruling importance. The Tongsa Dzong is a prime example, it is by far the largest Dzong in the country and was in olden times the seats of the dominate power in feudal Bhutan. A three hour drive from Tongsa takes you up to a height of 12500 feet -  The Yotola Pass and then down to 9500 feet to the valley of Bumtang. Considered the most secred valley, Bumtang as a rich areity of religious-Historical sites and ancient palaces of ruling family of the valley. The cultural trip to Bumtang also includes a 3 day walking tour to the sanctified spot where Guru Padhmasambhawa meditated. He was the great saint who converted the Bhutanese frompagan worshipers to peace loving Buddhist.