The tunnels were dug by hand using simple tools over a period of 20 years, beginning in the late 1940s.
At its peak, the tunnel network extended as far as the Cambodian border.
The soil in this region is laterite, which is exceptionally hard and durable, allowing tunnels to remain stable without structural supports.
Entrances to the tunnels were camouflaged with forest floor debris or hidden under water, utilizing specialized ventilation to prevent detection by ground troops.
The tunnels featured 'trick doors' and booby traps, including punji sticks and pit traps, designed to neutralize intruders.
To confuse aerial reconnaissance, the Viet Cong often staged activities away from actual tunnel entrances.
The Ben Duoc memorial temple contains an intricate relief wall depicting the history and daily life of the tunnel residents.
Some tunnel sections were built on three distinct levels to prioritize safety and functionality during sustained bombing raids.
The Ben Duoc tunnels represent the primary, original network of the Cu Chi underground complex, distinct from the more commercially developed Ben Dinh site. Spanning over 250 kilometers in total, this subterranean system includes living quarters, weapon factories, field hospitals, and command centers used by the Viet Cong during the Vietnam War. Unlike the modified Ben Dinh tunnels, the Ben Duoc section retains a more authentic, original layout and is situated within a larger historical memorial park. Visitors can crawl through sections of the tunnels, which have been widened slightly for tourism purposes while maintaining the original depth and complexity. The site also features a massive memorial temple honoring those who fought and died in the region. The complex is set within a dense, reconstructed forest environment that masks the ventilation shafts and entry points from above. It remains an active site for historical study and remembrance within Ho Chi Minh City's outskirts.
The elevated viewing platforms near the disguised tunnel entrances and the grand architecture of the Ben Duoc Memorial Temple.
Bring a change of clothes, as the tunnel dust and humidity will leave you covered in red soil.
Choose the shorter tunnel routes if you suffer from claustrophobia, as exit points are strategically placed throughout the course.
Wear insect repellent, as the surrounding forest and wetland areas are prone to mosquitoes.
Avoid the mistake of visiting the more crowded Ben Dinh site if you are seeking a quieter, more expansive, and historically authentic experience.
Maintain a respectful tone in the memorial temple area; remove hats and dress modestly.
