The Annapurna Conservation is the most geographically and culturally diverse protected area anywhere in the World. No where else in Nepal can one meet and experience such a wide variety of human culture. There are seven ethnic groups living and working in the region from Hindu farmers to Tibetan Lamas. Due to the extremes of elevation, the region contains a remarkable diversity of flora from sub-tropical lowland forests of oak, bamboo and rhododendron in the south to the high alpine meadows and windswept desert plateaus in the north. The area around the Annapurna massif is perhaps the best known trekking destination in Nepal. As the title suggests, the centre piece of this part of Nepal is the range of mountains that includes Annapurna I, the first of the 8000 meter peaks to be climbed. Also included in this general area is another 8000 meter giant, Dhaulagiri , which is located west of Annapurna I. Between these two mountains runs the valley of the Kali-Gandaki River, the deepest gorge on earth. Combine this with lush, fertile farming land, stands of undistributed natural forest and a mixture of different ethnic inhabitants and you have a diverse range of experiences that makes this area one of the most satisfying trekking destinations in Nepal.
The fact that the main Himalayan range runs south of the border with Tibet means that the northern parts of the area are in the rain shadow and are considerably drier than the southern slopes of the mountains. This leads to unusually diverse landscapes. The annapurna region have many different trekking route like Annapurna Base camp Trekking, Annapurna Circuit trekking, Mardi Himal Trekking, Jomsom Muktinath Trekking, Tilicho lake trekking, Mustang Trekking, Ghorepani Poonhill trekking.