Langtang Circuit Trek is also known as a Langtang Gosainkunda Helambu Trek which is a combine name of three major trekking routs located around Langtang regions. It covers Langtang Valley Trek, Gosainkunda Trek and Helambu Trek. Those trekkers who are intended to visit around this region within a couple of weeks of trek itinerary than this Langtang circuit trek give a complete trek itinerary in a short duration than doing separately. The three major areas are Langtang, Gosainkunda (a holy lake 4300m) and Helambu, which is combined in many different ways to make treks from one week to two weeks. Gosainkunda is a sacred lake, which is very important for both Hindus and Buddhists. Thousands of Hindu pilgrims visit the lake during a full moon festival that is observed on August every year. Helambu valley is very famous for its natural beauty and wonderful climate with the superb views of the magnificent snow-covered mountains. The area covers typical highland Sherpa villages along with beautiful Rhododendron forests. This region extends from the north to Taramarang to the Gosainkund Lake and the lower Jugal Himal from the north.