The Chư B'Lưk volcano, located in Krông Nô district, Đắk Nông province, is a cluster of caves within the longest volcanic cave system in Southeast Asia. The system comprises over 100 caves of varying sizes, stretching 25 km, formed by lava flows millions of years ago, and hidden within layers of basalt rock.

Enjoy a 4km hiking trail into the old-growth forest of Dak Nong.