parts of India and the world. Rishikesh near Haridwar is known as the preeminent yoga centre of India. The state has an abundance of temples and shrines, many dedicated to local deities or manifestations of Shiva and Durga, references to many of which can be found in Hindu scriptures and legends. Uttarakhand is, however, a place of pilgrimage for the adherents of other religions too. Piran Kaliyar Sharif near Roorkee is a pilgrimage site to Muslims, Gurudwara Darbar Sahib, in Dehradun, Gurudwara Hemkund Sahib in Chamoli district, Gurudwara Nanakmatta Sahib in Nanakmatta and Gurudwara Reetha Sahib in Champawat district are pilgrimage centres for Sikhs. Tibetan Buddhism has also made its presence with the reconstruction of Mindrolling Monastery and its Buddha Stupa, described as the world's highest at Clement Town, Dehradun. Auli and Munsiari are well-known skiing resorts in the state. The state has 12 National Parks and Wildlife Sanctuaries, which cover 13.8 per cent of the total area of the state. They are located at different altitudes varying from 800 to 5400 metres. The oldest national park on the Indian sub-continent, Jim Corbett National Park, is a major tourist attraction. Vasudhara Falls, near Badrinath is a waterfall with a height of set in a backdrop of snow-clad mountains. The state has always been a destination for mountaineering, hiking, and rock climbing in India. A recent development in adventure tourism in the region has been whitewater rafting in Rishikesh. Due to its proximity to the Himalaya ranges, the place is full of hills and mountains and is suitable for trekking, climbing, skiing, camping, rock climbing, and paragliding. Roopkund is a trekking site, known for the mysterious skeletons found in a lake, which was featured by National Geographic Channel in a documentary. The trek to Roopkund passes through the meadows of Bugyal. New Tehri city has Tehri Dam, with a height of is the tallest dam in India. It is currently ranked No 10 on the List of Tallest Dams in the world. Tehri Lake with a surface area of , is the biggest lake in the state of Uttarakhand. It has good options for Adventure Sports and various water sports like Boating, Banana Boat, Bandwagon Boat, Jet Ski, Water Skiing, Para-sailing, Kayaking. Education , there were 15,331 primary schools with 1,040,139 students and 22,118 working teachers in Uttarakhand. At the 2011 census the literacy rate of the state was 78.82% with