Mechuka Valley to be next tourist hotspot in the North-East The Arunachal Pradesh tourism department is promoting the picturesque Mechuka Valley, about 29 km from MacMahon Line which separates India from China, in West Siang district as the new tourist spot in the state. Mechuka, also known as Menchuka, is located 6,000 feet above sea level and is one of the most picturesque destinations in the state. It is home to the Buddhist Memba tribe and the 400-year old Samten Yongcha Monastery of Mahayana Buddhist sect which is a contemporary of the much-revered Tawang Monastery. Mechuka is also dotted with many Buddhist remains. The Siom River, which flows through Mechuka, also provides a breathtaking view of the valley.