Experts from the UNESCO Global Geopark Network experience the new heritage site "Orphan Stone" in Ban Hau valley, Cao Thang commune. (Photo: VNA)

Named "A time of fire flower", the route extends over Cao Bang city, Thach An district, and Quang Hoa district, encompassing geological heritage sites dated back millions of years.

In addition, the tour will bring tourists to a cluster of 1950 Border Victory relics and the traditional craft village of Bo To sugarcane making in Quang Hoa district.

The geopark’s other three sightseeing routes are Northern Route - Journey to the origin; West Route - Explore Phja Oac-Mountain of changes; and East Route - Experience the indigenous culture in wonderland.