This route takes one upstream along the Paro Chu and the ancient caravan route to Tibet, Through the Seo Valley deep into the shadows of Mt. Chomolari 7314m, Mt. Jitchu Drake 7000m and over Nele La Pass 4250m into Lingshi Valley. The inhabitants of these tow valleys are nomads subsisting almost entirely on the produce and products of sheep and yaks. The many lakes in Seo Valley are every angler’s wildest dream come true. At Lingshi is picturesque remnant of a once migltly border fortress is now the residences of the valley administrator. From his hill a day's trek is all it takdes to cross over the plateau of Tibet.

Heading East over the 3 high passes of Gobuala 4650m, jarila 4600m and Shinjela 4900m lays the valley of Laya. Herds of the rare Tarkin can be seen enroute to Tashi Jathang valley. Laya lies in the Masakhang mountain region which is the source of the Mo Chu flowing through Punakha. The inhabitants of Laya s an ethnic group are quite different form the rest of the Bhutanese people. Like the people so Seo and Lingshi they too are nomads. Along the way to Punakha, the old capital lays historic Gasa fort and the famous popular hot sping in Gasa.