Bang Spa is an area of hot mineral springs in Le Thuy County, Quang Binh Province, Vietnam. The surface mineral water here is hot enough to boil eggs. This is a tourist attraction of the province as many see bathing in hot mineral water as a health treatment for several diseases. The Annamite Range runs across the western end of this province and features many limestone caves and small gorges along the rivers here. The mineral water here is rich in calcium and other minerals and is now bottled for use by the Bang Mineral Water Company. The province is also home to some other tourist attractions, such as Phong Nha-Ke Bang National Park (a world heritage site listed by UNESCO), Da Nhay Beach, and Nhat Le Beach.