Annapurna Base Camp trek is the world-class trekking trails in Nepal. It is a high glacial basin located in the north of Pokhara city. Annapurna Base Camp trek gives an extraordinary variety of ecosystem because of the unique combination of depths and height. It is surrounded by the snow giants, especially Annapurna Himalayan ranges and other peaks above the 7000-meter mark. So, it receives only 7 hours of sunlight a day in the summer season. A dense tropical forest of bamboo and Rhododendron covered the south-facing slopes and the north-facing slopes are covered by rain shadow. The sanctuary is considered sacred by both Hindus and Buddhists as it is believed to be the abode of their deities. Annapurna sanctuary was not opened for foreigners until 1956. It is also called an Annapurna Sanctuary Trek. It is the most beautiful trek exploring the diverse ethnic groups and their cultures such as Gurung, Magar, Thakali and glimpse of flora and fauna. The trek offers spectacular mountain views including Machhapuchhere (6,993 m), Dhaulagiri (8,167 m), Lamjung Himal (6,983 m), Annapurna I (8,091 m), Annapurna III (7,555m), Annapurna South (7,219m), Himchuli (7,246m) while on the trail.