Visiting Cu Chi Tunnels: The Tunnel Rats’ War

Visiting the Cu Chi Tunnels: Delving Into Darkness

Published: June 30th, 2024. Updated: July 27th, 2026.

Beneath a patch of farmland fifty kilometres northwest of Ho Chi Minh City runs roughly 250 kilometres of hand dug tunnel, and for the better part of a decade, the soldiers standing on the ground above it had no reliable way of knowing it was there.

That single fact, more than any battle or body count, explains what makes Cu Chi worth visiting. This was not a fortress built to withstand attack. It was a landscape engineered to disappear an army. Farmers, fighters and entire families lived, cooked, gave birth and planned ambushes within a few metres of enemy patrols who walked directly over their heads and never noticed. The tunnels won no single battle outright, but they made a rural district on Saigon’s doorstep essentially ungovernable for years, and that achievement, quiet and largely invisible even to the people fighting against it, is what visitors are actually being shown when they crawl through a widened passage today.


A War Fought Below Ground Before It Was Fought Against Americans

The Cu Chi tunnels did not begin as an anti-American project. Villagers in the district started digging them in the late 1940s, during the war against French colonial rule, as a way of moving between hamlets and hiding from patrols without being seen. What is now presented to tourists as a single feat of wartime engineering was, in truth, a gradual accumulation of effort stretched across roughly two decades and two separate wars.

When American ground troops arrived in the early 1960s, they inherited a tunnel network that local fighters had already been expanding for fifteen years, and Cu Chi’s location made it strategically unavoidable. The district sat close enough to Saigon to threaten the seat of the government the United States was propping up, yet far enough into rural terrain to give the Viet Cong room to operate. Communist forces used the district as a staging ground and, eventually, as a headquarters for planning operations against the capital itself.

The tunnels were not simply hiding holes. Over time, sections expanded into a layered system with sleeping chambers, kitchens designed to vent smoke gradually so it dispersed unnoticed above ground, meeting rooms, basic hospitals, and storage for food and weapons. Whole stretches of village life migrated underground during periods of heavy bombing, and the network’s builders got very good, very quickly, at solving the practical problems that come with living beneath the earth in a tropical climate: air, drainage, concealment, and how to keep an enemy from following you through a passage barely wide enough for one body.


An Enemy the US Military Could Not See

By January 1966, American commanders had concluded that a major Viet Cong headquarters lay somewhere beneath the district, and they launched Operation Crimp to find and destroy it. Roughly 8,000 American and Australian troops swept the area after B-52 bombers had already turned much of the jungle into open ground. The operation is often remembered less for what it achieved than for what it revealed. Soldiers kept encountering an enemy that appeared from nowhere, inflicted casualties, and vanished again within seconds, and it took the units on the ground some time to work out that they had been walking directly above a tunnel system the entire time.

What followed was one of the more unusual specialisations of the war. Volunteers, chosen partly for their small build, were trained to enter the tunnels alone armed with little more than a pistol, a knife, a torch and a length of string to mark their route. Australian troops first called them tunnel ferrets. An American journalist misheard the term, and tunnel rats stuck. Their job was to move forward inch by inch in total darkness, feeling for tripwires and buried mines, alert to the fact that the person waiting in the dark ahead of them, if there was one, already knew the tunnel and they did not. Soldiers who did the work described the experience using a phrase that has survived in the military lexicon ever since: the black echo.

The tunnels themselves were seeded with deliberate hazards. Trip wires connected to grenades, punji stakes hidden beneath false floors, and booby traps designed to tip boxes of scorpions or venomous snakes onto anyone who triggered them. Some of these devices are reconstructed for visitors today, not for shock value but because they explain, more clearly than any casualty figure, why tunnel clearance became one of the most psychologically demanding jobs of the entire war. The tactical response from American forces (flooding entrances with gas or water, or simply collapsing sections with grenades) rarely solved the underlying problem, because the network beneath Cu Chi was never a single line that could be cut. It branched, doubled back and connected to other tunnels that were themselves connected to still more, and no single sweep of the district could account for all of it.


What Visitors Actually See

Almost none of the network open to visitors today is unmodified. The original tunnels were dug for Vietnamese bodies moving quickly through darkness, not for tourists, and passages that once measured under a metre in height have been deliberately widened at both public sites to let a modern visitor pass through hunched over rather than on their stomach. Even with that adjustment, most people who attempt a crawl through the tunnels report managing only a short stretch before the heat, the narrowness and the dark become too much. Guides at both sites note that roughly a fifth to a third of visitors choose to go underground at all; the rest are content to look at the entrance and take the guide’s word for what it was like.

The site is split across two separate locations, and the choice between them matters more than most people expect before they arrive. Ben Dinh, the closer and more established of the two, draws the majority of organised coach tours and tends to feel crowded from mid morning onward. Ben Duoc, a further ten kilometres out, receives fewer visitors and preserves passages closer to their original dimensions, along with a memorial temple that Ben Dinh does not have. Both sites include reconstructed booby traps, underground command bunkers, a rest area serving boiled cassava and tea (the plain wartime staple that sustained fighters living below ground), and a preserved American M41 tank, left where it was disabled decades ago.

Both sites also include a working firing range where visitors can pay to shoot AK-47s, M16s and other Vietnam War era weapons at a target, under supervision, with the guns bolted to a fixed mount. It is, by a wide margin, the site’s most debated feature. For some visitors it is treated as a straightforward novelty, a chance to fire a weapon they have only seen in films. For others, arriving at a memorial to a war that killed and maimed enormous numbers of Vietnamese civilians and soldiers, the crack of rifle fire drifting across the grounds sits uneasily beside the rest of the experience, and more than one Vietnam based travel writer has argued publicly that the range no longer belongs at a site presented as a place of historical reflection. Nobody organising the tour is required to visit it, and it is worth deciding in advance whether you want to.


A Landscape Still Marked by What Happened

Cu Chi today is farmland again, replanted and green, but the scars of the bombing campaigns that targeted the tunnel network are still visible if you know where to look. Some of the shallow depressions on the site are the remains of B-52 bomb craters, softened by decades of rain and regrowth but never fully erased. The contrast between what the ground looks like now and what the underground network beneath it was built to survive is, more than any single artefact on display, what tends to stay with people after they leave.

The tunnels were designated a special national historical site in 2016, and roughly 120 kilometres of the original network have been preserved as part of the memorial complex, a fraction of what once existed but still an extraordinary amount of hand dug passage to have survived intact. The site functions today as both a monument to a specific rural district’s role in a national war and, more broadly, as one of the clearest physical illustrations anywhere of how a materially outmatched force can neutralise a superior one, not by defeating it in open battle, but by making the ground itself unreadable to the people standing on it.

Whether that achievement is best honoured through quiet observation, an underground crawl, or a magazine of AK-47 rounds fired at a paper target is a question the site leaves entirely to the visitor. It offers all three within a few hundred metres of each other and does not appear especially interested in reconciling them.

Tourist Information

Location: Cu Chi district, approximately 50 kilometres northwest of central Ho Chi Minh City, Vietnam. There are two separate visitor sites: Ben Dinh (closer, busier) and Ben Duoc (further, quieter, includes a memorial temple).

Opening hours: Both sites are open daily from 7:00am to 5:00pm, with ticket counters typically closing around 4:00pm.

Typical visit duration: Two to three hours on site. Including return transport from Ho Chi Minh City, plan for a half day, roughly five to seven hours in total.

How to get there: Most visitors join an organised half day or full day tour departing from Ho Chi Minh City, which includes transport, a guide and entry. Independent travellers can reach Cu Chi by public bus, though the journey involves at least one transfer and takes around two and a half hours each way. Private car or Grab hire is also an option for those wanting flexibility over timing. A small number of operators offer a boat tour up the Saigon River as an alternative approach.

Admission: Entry fees apply and vary slightly between the Ben Dinh and Ben Duoc sites. Check the official Cu Chi Tunnels website or your tour operator for current pricing and booking details, as fees are subject to change.

Accessibility: The above ground areas are walkable but include uneven, unpaved paths and are not well suited to wheelchairs. The tunnels themselves involve stooping or crawling through narrow, low passages and are not accessible to visitors with mobility restrictions, claustrophobia or significant back or knee problems. Entering the tunnels is entirely optional, and above ground exhibits can be viewed without doing so. The site is generally suitable for children, though some parents choose to skip the tunnel crawl and the firing range with younger visitors.

Facilities: Both sites have toilets, a rest area serving simple refreshments such as tapioca and tea, a souvenir shop, and parking for tour coaches and private vehicles. Neither site has extensive dining options, so most tours include a stop for a fuller meal elsewhere.

Best time to visit: Arrive as close to opening as possible, ideally before 9:00am, to avoid both the heat and the coach tours that arrive from mid morning onward. The dry season, roughly December to April, offers more reliable weather, though it also coincides with peak tourist numbers, particularly around Lunar New Year.

Things to know before visiting Cu Chi Tunnels:

  • Wear clothes and shoes you are comfortable getting dirty, especially if you intend to crawl through a tunnel section.
  • The tunnels are hot, dark and narrow even after widening for tourists; those with claustrophobia may prefer to skip this part.
  • The optional firing range is loud and audible across parts of the site; if you would rather not hear it, factor that into which site and which part of the day you visit.
  • Ticket counters generally accept cash in Vietnamese dong only.
  • A guide, whether through an organised tour or hired locally, adds considerably to the experience, since much of the tunnel system’s design and function is not self explanatory from the exhibits alone.

Nearby places of interest:

  • The Saigon River, which several boat tours to Cu Chi travel along
  • Cao Dai Holy See temple in Tay Ninh, sometimes combined with Cu Chi as a full day tour
  • War Remnants Museum, back in central Ho Chi Minh City, for further context on the wider conflict

Further Reading & Resources:

  • Books: The Tunnels of Cu Chi by Tom Mangold and John Penycate, widely regarded as the definitive account of the tunnel network and the tunnel rats who fought within it
  • Documentaries: various Vietnam War documentary series covering the tunnel warfare of the Cu Chi and Iron Triangle region
  • Museums: War Remnants Museum, Ho Chi Minh City, for broader historical context on the conflict
  • Official websites: the Cu Chi Tunnels’ official visitor information pages, accessible through the Ho Chi Minh City tourism authority

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