Lam Dong, Aug. 1 -- The UNESCO Dak Nong Global Geopark in the central province of Lam Dong has begun preparations for its next revalidation, scheduled for July 2027, in a bid to retain its prestigious international designation while promoting its geological, cultural and biodiversity heritage through sustainable tourism.

An open-air museum in Vietnam's Central Highlands

Covering nearly 4,760 square kilometres across 22 communes and wards in western Lam Dong (equivalent to 73.1% of the former Dak Nong province's natural area), the geopark was shaped by millions of years of geological activity and successive volcanic eruptions. These natural processes created a remarkable network of basalt lava tubes, regarded as one of the most significa...