The Tu Lan Cave System is located at Tan Hoa village, Minh Hoa District, Quang Binh. It is about 70km North-West of Phong Nha and discovered by Only 3 caves, Tu Lan, Hang Ken and Hang Tien were explored on the 2010 expedition. In 2012 the BCRA expedition came back and explored more caves including

Hang Toi (Dark Cave) is about 50km north-west of Dong Hoi belong to Son Trach commune, Bo Trach district, Quang Binh. It is the only cave in Vietnam that has opened “cave mud bath” tourism service, attracting both International and Domestic Guests. Located in the heart of the Phong Nha – Ke Bang National Park,