This circuit is considered one of the best treks in the world though road construction is threatening its reputation and its future as a classic trek. Yet no one disputes that the scenery is outstanding: 17 to 21 days long, this trek takes you through distinct regional scenery of rivers, flora, fauna and above all – mountains. There are four regions that are passed through on the trek; Lamjung, Manang, Mustang and Myagdi. Lamjung and Myagdi of the lower elevations are both predominantly Hindu and with lush green subtropical valleys with villages and terraced farming. Manang and Mustang are of the higher elevations and are predominantly Tibetan Buddhist. The Manang people are Gurung (not Tibetan descent) and are very proud of their unique cultural heritage and merging of lower land Gurung and Tibetan cultural influences. People of Mustang identify themselves a lot closer with Tibet and the Mustang region has actually been part of Tibet in history. Mustang also is one of the last places in the world to view the ancient Bonpo Religion in action. Villages to note for Bonpo are Thini and Lupra near Jomsom, and Nargon near Kobang. The trek goes counter-clockwise from Besisahar to Nayapul and reaches its summit in Thorung La (pass) at the height of 5416m, or 17,769 feet. The route goes past the following mountains: Manaslu (an 8,000-plus meter peak), Langtang Himal, Annapurna II and IV, Annapurna III and Gangapurna, and, of course, Annapurna I and Dhaulagiri — passing through the world’s deepest gorge in between those two 8,000-plus meter peaks. Poon Hill, at the end of the trek, affords views of those two mountains, as well as South Annapurna and Macchupucchre, the "Fishtail Mountain." The trek also goes through Buddhist villages and Hindu holy sites, most notably the village of Muktinath, a holy site for both Buddhists and Hindus, and Braga, one of the oldest monasteries in the region. From Dharapani to Kagbeni you will be walking the Annapurna section of The Great Himalaya Trail, a long distance trekking route that connects Nepal from East to West. The eastern portion of the trek follows the Marsyangdi River upstream, to its source near the village of Manang. To get there several days of up-hill hiking are required. Then the route goes over the pass, a grueling day of hiking, and back down the other side, where it meets up with the Kali Gandaki River. After the pass, an alternative to walking is to rent a mountainbike (in Muktinath or Jomsom), and bike your way down, following the jeep road or alternative trails. Mustang is on its way to become one of the world’s major mountain-biking destinations, thanks to its still beautiful sceneries and the fact that one descends from 4000m. to 1200m. altitude along this jeep road or single tracking it on alternative walking trails. The road construction is thus turned into a positive thing for tourism. At the end of the trek, several options are available: following the river further to the road proper to Beni and catching a bus to Pokhara, or adding on a trek to the Annapurna Base Camp (ABC Trek), aka the Annapurna Sanctuary Trek.