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🕯️ Kanchanaburi · Memorial

Hellfire Pass (Konyu Cutting)
A rock cutting dug by hand — the Death Railway memorial

The deep rock cutting carved by hand by Allied prisoners of war and conscripted Asian labourers during the Second World War. Today it is a memorial walking trail and museum — a place visited quietly, to remember the men who did not come home.

What it is

What Hellfire Pass is — and why people come

Hellfire Pass — formally Konyu Cutting — is a deep rock cutting carved through a ridge as part of the Thailand–Burma Railway, the line the wartime Japanese army forced through this country in 1942–43 during the Second World War. The cutting runs around 500 metres long and reaches roughly 26 metres deep, and almost all of it was excavated by hand, with little more than hammers, drills, dynamite and human labour.

The work was done by Allied prisoners of war — Australian, British and others — alongside conscripted Asian labourers, under conditions of disease, starvation and relentless forced labour. During the construction push known as the "Speedo," men were made to cut rock through the night by the light of torches and oil lamps. Their gaunt figures against the flames in the darkness were said to resemble a vision of hell, and the name Hellfire Pass stuck. Many men died at this stretch of the line.

No trains run on this section today. The cutting has become a memorial, cared for in partnership with the Australian government, with a Memorial Walking Trail that leads down into the cutting itself and a small interpretive museum that tells the story. This is not a sightseeing attraction in the ordinary sense. It is a place you come to walk, to listen, and to stand still for a moment in remembrance.

Hellfire Pass (Konyu Cutting), Kanchanaburi — the deep Death Railway rock cutting with memorial flags, plaques and original rail sleepers
Hellfire Pass — the deep, hand-cut rock passage, with memorial plaques and wreaths laid for the men who died
🎟️
Admission
Free entry
Donation box at the entrance
🕘
Opening hours
09:00–16:00
Open daily · check current hours before you go
🎧
Audio guide
Free to borrow
~฿200 deposit · accounts from surviving POWs
🚗
Distance
~80 km from town
Northwest along Highway 323
Time needed
90 min – half day
Museum + short walk, or the longer trail
🥾
The walk
Steps and slopes
Sturdy shoes · water · sun protection
When you arrive

What you will find at Hellfire Pass

The site is not large, but every part of it carries weight — walk it slowly, and take the time to listen.

Visiting respectfully

Coming here with respect for the place

🕯️ This is a place of remembrance, not a photo stop

Many men died at this part of the line during its construction. For the families of those soldiers and labourers, this is sacred ground. Visit quietly, keep your voice low, and do not climb on or move the memorial plaques and wreaths. Photography is allowed, but take your photographs with care — particularly where others are standing in silence or paying their respects.

If you have questions or want to understand the history more deeply, the staff at the museum are glad to help, and the audio guide turns the walk into something far more meaningful than simply passing through.

☀️ Weather, seasons and what to prepare

The trail runs through forest and is partly open to the sun. From March to May it is very hot (highs often 35–40°C), so come early and carry plenty of water. November to February is the coolest, most comfortable time to walk. From June to October it is the rainy season — the forest is lush and crowds are thinner, but the path can be slippery in places, and you may encounter mosquitoes or leeches in the forest after rain. Walk carefully.

What to bring: drinking water, a hat or umbrella, sunscreen, insect repellent, and shoes that handle rough ground and steps. There are few facilities along the trail, so come prepared from town.

Tip: If you plan to walk the long trail, set out early and leave time before the museum closes at 16:00. The climb back up out of the cutting takes some effort — pace yourself, especially on a hot day.
Rock face along the Hellfire Pass memorial trail, Kanchanaburi — memorial plaques and wreaths beneath the hand-drilled stone in the forest
A rock face along the memorial trail — plaques and wreaths set beneath the hand-drilled stone

🚉 Part of one larger story

Hellfire Pass is one point on the Death Railway. To understand the line as a whole, pair it with a visit to the Bridge over the River Kwai and a ride on the Death Railway through Tham Krasae, where the track still clings to the cliff above the river. Many of those who died are buried at the Kanchanaburi War Cemetery (Don Rak) in the town centre. Each is a part of the same history.

Getting there

How to reach Hellfire Pass

Hellfire Pass is in the Sai Yok area, about 80 km northwest of Kanchanaburi town. No train runs to the entrance itself, so planning matters — especially the timing of the return service.

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Private car / taxi / Grab
The most flexible option
North along Highway 323 past Nam Tok, then into the national park access road · ideal if you are also visiting Erawan or Sai Yok
🚌
Public bus 8203
~฿50 · about 90 minutes
From Kanchanaburi town, stops at the entrance · last return bus leaves in the late afternoon — check the timetable
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Tour / train + connection
Easiest for first-timers
Tours from Kanchanaburi or Bangkok often combine several sites · or take the train to Nam Tok and a local connection
Planning your day: Hellfire Pass is remote and time-consuming. With your own vehicle you can pair it with Erawan Waterfall or Sai Yok on the same day, as they sit along the same Highway 323. By public transport, leave more time and focus on Hellfire Pass alone. See the wider picture in our Kanchanaburi day trips guide.
Where to stay

Staying in Kanchanaburi

Most visitors base themselves in town or on the River Kwai, then make the trip out to Hellfire Pass as a day excursion.

Frequently asked

FAQ · Hellfire Pass practical

Is there an entry fee for Hellfire Pass?
Both the museum and the memorial walking trail are free to enter. There is a donation box at the entrance for those who wish to support the upkeep of the site. The audio guide is also free to borrow — you simply leave a deposit of around ฿200 and get it back when you return it. The site is open daily from 09:00 to 16:00 (check current hours before you travel).
How do you get to Hellfire Pass, and how far is it from town?
It is in the Sai Yok area, about 80 km northwest of Kanchanaburi town along Highway 323. No train runs to the entrance itself. The easiest options are a private car, taxi or an organised tour. Public bus 8203 from town also stops at the entrance (around ฿50, ~90 minutes); the last return bus leaves in the late afternoon, so always check the timetable first.
How long does the Hellfire Pass walk take?
Allow around 90 minutes to two hours to see the museum and walk the short trail down into the cutting and back. The longer trail along the old railway formation, with the audio guide, takes roughly two hours there and back, or budget a half day for the full route. The path has steps and some steep sections, so wear sturdy footwear.
What should you bring to Hellfire Pass?
Bring plenty of drinking water, a hat or sun protection, sunscreen and insect repellent — the trail is in forest and partly exposed to the sun. Wear sturdy shoes that handle rough ground and steps. In the rainy season the path can be slippery, so walk carefully. As this is a memorial, visit quietly and respectfully.
Why is it called Hellfire Pass?
The name comes from the night-time scenes of exhausted prisoners cutting rock by torch and lamp light — their gaunt figures against the flames in the darkness were said to look like a vision of hell. The formal name is Konyu Cutting: a rock cutting around 500 metres long and up to roughly 26 metres deep, where many men died during construction.
Klook · Kanchanaburi tours

Death Railway, Hellfire Pass and Kanchanaburi history tours — book ahead, travel easier

War-history tours from Kanchanaburi or Bangkok that often combine several sites, with transfers and a guide included — booking through Klook in advance is more practical than arranging everything on the day.

Browse Kanchanaburi tours on Klook →
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