S-21 Prison and Killing Fields in Phnom Penh
Phnom Penh, Cambodia

S-21 Prison and Killing Fields

Outty Ranking 62 5.0 · 8 traveler reviews3 hoursFrom $55

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September 2026

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Adults

Age 13 and over

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Age 12 and under

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From, per person$55
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Outty Ranking

62/100

Solid Choice. Our proprietary evaluation. How we score

Traveler rating

5.0/5

Based on 8 traveler reviews. Ratings and reviews provided by Viator and Tripadvisor.

Quick answer

Is S-21 Prison and Killing Fields worth booking?

S-21 Prison and Killing Fields is a 3-hour experience in Phnom Penh, Cambodia, from $55 per person. It scores 62 out of 100 on the Outty Ranking, which we label “Solid Choice, based on a 5/5 rating across 8 reviews. Cancellation is free up to 24 hours before the start time. Same-day spots are currently showing.

Outty Ranking
62 / 100
Rating
5/5 (8)
Duration
3 hours
From
$55 per person

First, we come to pick you up with our comfortable and AC vehicle and drive to Choeung Ek Killing field. A very moving and confronting experience the Killing Fields were the final resting place for over 17,000 men, women

What you get

    About this experience

    First, we come to pick you up with our comfortable and AC vehicle and drive to Choeung Ek Killing field. A very moving and confronting experience the Killing Fields were the final resting place for over 17,000 men, women, children and infants between 1975 and 1978. We then continue to Tuol Sleng Museum. In 1975 Tuol Svay Prey High School was taken over by Pol Pot’s security forces and turned into a prison known as Security Prison (S-21). It rapidly became the largest centre of detention and torture in the country.

    What's included

    Included

    • English speaking guide
    • Refreshment drink & cold towel
    • In-vehicle air conditioning

    Not included

    • Entrance fees Killing Fields: $3/per person
    • Entrance fees Tuol Sleng: $5/per person
    • Audio in Killing Fields & Tuol Sleng

    What you'll see and do

    1. Choeung Ek Genocidal Center

      We depart from your hotel with private transportation and drive to the Killing Fields of Choeung Ek, located about 16kms south of Phnom Penh. A very moving and confronting experience the Killing Fields were the final resting place for over 17,000 men, women, children and infants between 1975 and 1978. It is estimated the Khmer Rouge Regime took the lives of between 2 and 4 million Cambodians during their destructive and devastating time in control between 1975 and 1979. Your guide will provide you with a detailed tour of the fields.

      90 minutes here · Admission not included

    2. Tuol Sleng Genocide Museum

      We continue to Tuol Sleng Museum. In 1975 Tuol Svay Prey High School was taken over by Pol Pot’s security forces and turned into a prison known as Security Prison (S-21). It rapidly became the largest centre of detention and torture in the country. Prisoners were repeatedly tortured and coerced into naming family members and close associates, who were in turn arrested, brought to S21, tortured and eventually killed. Spend time discovering the harrowing truths of the prison. Note: National Museum, Silver Pagoda and Royal Palace are open every day. However, the Silver Pagoda and the Royal Palace may be closed without prior notice while H.M. the King is in the residence.

      90 minutes here · Admission not included

    Where it starts and ends

    Hotel pickup

    Pickup is included for all travelers. Pickup begins about 30 minutes before departure.

    Before you book

    Cancellation
    For a full refund, cancel at least 24 hours before the scheduled departure time.
    Languages
    de, en, fr, es
    Ticket
    Mobile Only
    Runs on
    Every day
    Group size
    Up to 7 travelers per booking
    Operated by
    Angkor T.K Travel & Tours

    Know before you go

    • Suitable for all physical fitness levels

    Photos

    Choeung Ek Killing FieldTuol Sleng MuseumTuol Sleng MuseumTuol Sleng MuseumTuol Sleng MuseumKilling Fields Choeung Ek Prayer Chains

    What travelers are saying

    Outty’s summary of the themes that recur across 8 traveler reviews. Written by us, not quoted from reviewers.

    Knowledge and storytelling

    5 mentions

    Reviewers describe the commentary as informative rather than scripted.

    The guide

    3 mentions

    Travelers single out the guide as the reason the experience works.

    Good for families

    2 mentions

    Reviewers traveling with kids report it landed well with their group.

    Traveler reviews

    8 verified traveler reviews for S-21 Prison and Killing Fields. Ratings and reviews provided by Viator and Tripadvisor.

    5 star
    8
    4 star
    0
    3 star
    0
    2 star
    0
    1 star
    0
    Sort
    Hugary1 · January 2025

    S21 Prison

    A terrible insight into the madness of Pol Pot and his supporters and what they did to their own people. A must see. Not so much for young kids. This was part of our Uniworld Cruise in Vietnem and Cambodia

    via Tripadvisor

    Riggerreid · June 2024

    So very sad history

    A very sad history that needs to be told how over 3 million people were tortured and killed. A devastating event that I didn’t really know much about, I’m so glad I visited and could pay my respects to the innocent people Well worth a visit

    via Tripadvisor

    Alexandra_B · March 2023

    Must-Do For Anyone Wanting To Understand Cambodian History

    Our guide Kim was superb and approached the sensitive topics related to both of the sites we visited with tact and emphaty. I feel this is a must-do tour for anyone wanting to understand the history of the wonderful country of Cambodia.

    via Viator

    Stitch1627 · March 2023

    Lesson in Cambodia’s dark past

    Highly recommend this tour to anyone who wants learn about Cambodias past. It’s confronting but worthwhile to understand and learn from. Taught me and my family respect and kindness to all humans no matter what race, religion or colour we are.

    via Tripadvisor

    Traveller162014 · December 2022

    Very important

    It was a very sad, harrowing experience coming here and learning about the history of what happened. Perhaps ignorantly, I knew nothing of the tragic history of Cambodia so it felt important I come here to learn more.

    via Tripadvisor

    Good to know

    Duration
    3 hours
    Free cancellation
    Up to 24h before
    Minimum age to book
    All ages
    Availability
    Bookable today
    Runs on
    Every day
    Price range
    $55 to $111
    Hotel pickup
    Included for all travelers
    Booked in 30 days
    3
    Verdict
    Solid Choice

    Why this scores 62

    The Outty Ranking is a weighted composite. Here is how this experience performed on each component.

    Traveler sentiment (30% weight)93
    Review evidence (18% weight)36
    Booking momentum (14% weight)27
    Value for money (12% weight)32
    Listing quality (10% weight)77
    Local standing (8% weight)55
    Booking flexibility (8% weight)100

    S-21 Prison and Killing Fields: questions travelers ask

    Practical detail on this experience, plus the wider planning questions for Phnom Penh.

    How much does S-21 Prison and Killing Fields cost?

    +

    Prices start at $55 per person. The final price depends on the date, the time slot and the number of travelers, and peak weekends in Phnom Penh usually price higher than midweek mornings. Live pricing and remaining availability are confirmed on the booking screen before you pay.

    How long does S-21 Prison and Killing Fields take?

    +

    Plan for about 3 hours from start to finish, not counting travel to the meeting point. Most travelers leave another 30 minutes on either side so the rest of the day in Phnom Penh is not rushed.

    Is S-21 Prison and Killing Fields worth it?

    +

    It holds an Outty Ranking of 62 out of 100, which we label "Solid Choice". That score blends traveler sentiment (5/5 across 8 reviews), the depth of that review evidence, recent booking momentum, value for money against comparable last minute in Phnom Penh, and how flexible the cancellation terms are.

    Can I cancel or reschedule S-21 Prison and Killing Fields?

    +

    Yes. Cancel free up to 24 hours before the start time for a full refund. Inside that window the booking is non-refundable, and no-shows are not refunded.

    Is S-21 Prison and Killing Fields suitable for kids and families?

    +

    Yes, all ages are welcome. Families should still weigh the 3-hour running time, and strollers are easier on the earlier, quieter departures.

    How far in advance should I book S-21 Prison and Killing Fields?

    +

    Around 3 people booked this in the last 30 days, so popular slots go early. Two to three weeks ahead is comfortable in shoulder season, while summer weekends and holidays in Phnom Penh can sell out a month out. Same-day spots do open up when other travelers cancel, so it is worth checking if you are already in town.

    What should I bring or wear?

    +

    Bring photo ID, your booking confirmation on your phone, a refillable water bottle and comfortable shoes. Dress for the weather in Phnom Penh and add a light layer if any part of the 3-hour experience runs outdoors or after sunset.

    Where does S-21 Prison and Killing Fields start and how do I get there?

    +

    The exact meeting point and directions are on your voucher once you book, and they sit in central Phnom Penh within reach of public transport. Arrive 15 minutes early: late arrivals are treated as no-shows by most operators.

    What are the best things to do in Phnom Penh?

    +

    On Outty we rank every Phnom Penh experience on the same 0 to 100 scale, and alongside this one the highest scorers right now include Half Day Tuol Sleng S21 and Choeung Ek Killing Field Tour, The Killing Field and Toul Sleng Genocide Museum (S21) Tour, Killing field and Toul Sleng genocide museum Tour. The city page groups everything into most popular, highest reviewed, last minute and family-friendly so you can build a day around what actually delivers.

    When is the best time to visit Phnom Penh?

    +

    Booking patterns follow the same curve: prices and queues climb in peak weeks, while shoulder season gives you better availability on the top-ranked experiences and more room to change plans.

    How many days do you need in Phnom Penh?

    +

    Three full days covers the headline sights without sprinting. A workable rhythm is one anchor experience each morning, such as this one, an unhurried afternoon in a single neighborhood, then a food or nightlife booking in the evening. Five days lets you add a day trip outside the city.

    Do I book through Outty or through the operator?

    +

    Outty ranks and explains the experiences, then hands you to Viator to complete the booking with the operator directly. The price is the same as booking on Viator yourself, and Outty earns an affiliate commission on the referral, which is how the rankings stay free to read.

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