The journey begins with remarkable geological heritage sites that reveal the long and complex geological history of northeastern Vietnam. Hoang Tung Stone Garden (Thuc Phan Ward) is characterized by tall limestone pillars rising above layers of volcanic and reddish sedimentary rocks, creating the impression of a natural stone garden. This distinctive landscape has been shaped by long-term weathering, dissolution, and erosion, and reflects geological processes associated with continental rifting and the development of intracontinental basins approximately 250 million years ago.

Nguom Slua Cave (Thuc Phan Ward), the Keo Yen karst landscape (Lung Nam Commune), and the Soc Giang Hanging Valley (Ha Quang Commune) further illustrate the influence of tectonic activity on the landscape. Fault-controlled valleys, planation surfaces, clusters of karst peaks and depressions, together with evidence associated with the Cao Bang–Tien Yen Fault Zone, have helped shape the characteristic tropical karst landscapes found across the Geopark. These sites also provide valuable settings for understanding landscape uplift, drainage-system evolution, and the development of karst landscapes over millions of years.

A particular highlight of the route is the Lung Luong Ammonite (Lung Nam Commune). Ammonite fossils preserved in limestone layers dating back approximately 260 million years provide evidence of an ancient marine environment. These fossils are valuable for understanding the age and geological history of the rock formations, while also helping reconstruct the marine environments that existed in this region hundreds of millions of years ago.

Alongside its geological heritage, the Northern Route is also a journey into the roots of Vietnam’s revolutionary history. Pac Bo Special National Monument (Truong Ha Commune) is one of the key highlights of the route. After 30 years abroad seeking a path to national liberation, Nguyen Ai Quoc returned to Vietnam on 28 January 1941 through Milestone 108 and chose Pac Bo as a base for revolutionary activities. At Pac Bo, he chaired the Eighth Plenum of the Central Committee of the Communist Party of Indochina, which led to the establishment of the Viet Minh Front. He also directly guided the revolutionary movement, laying important foundations for the success of the August Revolution in 1945.

Today, Coc Bo Cave, Lenin Stream, and Khuoi Nam Shack preserve important traces of President Ho Chi Minh’s revolutionary activities in Pac Bo from 1941 to 1945. These sites have become enduring symbols of Vietnam’s revolutionary history and are among the most important historical destinations in the Geopark.

Following this historical thread, Nguom Boc Cave (Hoa An Commune) is another significant heritage site. President Ho Chi Minh lived and worked here from 1942 to 1945, and the cave hosted a number of important meetings in preparation for the August General Uprising. In addition to its historical significance, Nguom Boc Cave is also an archaeological site containing evidence of prehistoric human occupation dating back approximately 10,000 years. The cave developed within limestone formations deposited in an ancient Carboniferous–Permian marine environment.

Meanwhile, Nguom Slua Cave (Thuc Phan Ward) bears witness to some of the early revolutionary activities of the Cao Bang Party organization. The cave was used for printing the Co Do newspaper and for holding important meetings of the revolutionary movement during the period from 1932 to 1936. The combination of geological, archaeological, and historical values gives the caves along the Northern Route a distinctive character, where natural heritage and human history are closely interconnected.

The Northern Route also invites visitors to explore a diverse system of historical and cultural heritage sites across Cao Bang. De Doong Temple (Hoa An Commune), King Le Temple (Thuc Phan Ward), and Nung Tri Cao Temple (Truong Ha Commune) are representative sites reflecting the spiritual life, historical depth, and long-standing tradition of defending the northern frontier among local communities.

Each site preserves traces of different historical periods, from folk beliefs and the legacy of feudal dynasties to enduring symbols of territorial protection and the aspiration for national independence. Beyond their historical, cultural, and architectural values, these sites contribute to the preservation of collective memory, the safeguarding of cultural identity, and the promotion of historical awareness among younger generations.

The route is also deeply rooted in the living cultural traditions of local communities. Luong Noi Brocade Weaving Village preserves traditional weaving practices of the Tay people, including spinning, setting up the loom, creating patterns, and hand-weaving fabrics. Today, these traditional practices continue to be maintained alongside tourism development, creating opportunities for local livelihoods while promoting the distinctive cultural identity of the community.

The route also passes through extensive rice fields in the Hoa An Basin, lush karst valleys, local specialties, and landscapes shaped by the everyday life of Tay and Nung communities. Together, these elements create an authentic and immersive experience, allowing visitors to appreciate not only the natural environment but also the cultural traditions and way of life of communities living in this northern frontier region.

The harmonious integration of geological, historical, cultural, and landscape values gives the Northern Route its distinctive identity. Each heritage site represents a piece of a larger story, connecting the geological evolution of the land with the history, culture, and people of Cao Bang.

“Experience History and Freedom” is therefore more than a journey through the geological evolution of Cao Bang. It is an opportunity to explore the revolutionary history of Vietnam, connect with local cultural traditions, and gain a deeper appreciation of the heritage of the northern frontier. Through these experiences, the route encourages pride in national history, strengthens connections with the homeland, and inspires greater awareness of the importance of conserving the outstanding natural, historical, and cultural heritage of the Non Nuoc Cao Bang UNESCO Global Geopark.