Tản Viên is a prominent mountain located in Vietnam, specifically in Hà Nội province. It is part of the Tam Đảo mountain range and stands at an elevation of about 1,300 meters. The mountain is known for its lush greenery, diverse flora and fauna, and stunning views, making it a popular destination for hikers and nature enthusiasts. The area surrounding Tản Viên is rich in cultural significance, often associated with local legends and folklore. It is also home to several temples and shrines, including the famous Tản Viên Temple, which is dedicated to the mountain's deity. Visitors often come to explore both the natural beauty and the spiritual heritage of the region.