Day trip

San Ignacio: Actun Tunichil Muknal (ATM) Cave Full-Day Tour

4.9 / 5

78 reviews

Activity provider: Belize Caving Expeditions

San Ignacio: Actun Tunichil Muknal (ATM) Cave Full-Day Tour

Activity provider: Belize Caving Expeditions

From US$ 115 per person

Pass the gateway of the Mayan Underworld, stepping into hidden chambers revealing ancient Mayan artifacts, human skeletons and geological processes that have helped to shape the Mayan underworld.

About this activity

Free cancellation
Cancel up to 24 hours in advance for a full refund
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Covid-19 precautions
Special health and safety measures are in place. Check your activity voucher once you book for full details.
Duration 8 hours
Check availability to see starting times.
Live tour guide
Spanish, English
Pickup included
Hotels within San Ignacio Town or surrounding area.


  • Enjoy amazing geological formations such as sparkling stalactites, stalagmites and flow stones
  • Discover the parallel unseen world where kings and shamans could enter to communicate with gods
  • Swim in the crystal clear water of the underworld
Full description

Depart from San Ignacio and head to the starting point for your hike. Make your first river crossing band hike to the cave entrance for a safety demonstration.

Make your way into the cave, swimming and then walking through the main water passage until you reach the boulder and head to the dry chamber. To enter the chamber, you will be required to slip off your shoes in order to protect the cave. Marvel at the cave's artifacts, most of which have been calcified into the ground, unmoved even by archaeologists. Hear your guides talk about the rituals and ceremonies, bloodletting offerings, food offerings and human offerings, including the 15 human remains uncovered by archaeologists. To access the last chamber, you will climb up a ladder to see a full skeletal remains before exiting the cave in the same way you came in. You will hike back to the parking lot before replenishing yourself with lunch and returning to San Ignacio.

  • Entrance fees
  • Water, snacks
  • Lunch
  • Rum punch
  • Tour guide
  • Transportation
  • Equipment rental
  • Gratuities (optional)
Not suitable for
  • Pregnant women
  • People with back problems
  • Wheelchair users
  • People under 3 ft 3 in (100 cm)

Select participants and date



Important information

What to bring

  • Change of clothes
  • Towel
  • Insect repellent
  • Socks
  • Closed-toe shoes

Not allowed

  • Cameras
  • Video recording

Know before you go

  • Cameras are not allowed
  • Please bring a complete change of clothes, closed-toe footwear, a pair of socks, mosquito repellent, and a towel
Customer reviews

Overall rating

4.9 /5

based on 78 reviews

Review summary

  • Guide
  • Transportation
  • Value for money
  • Safety

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Star rating:

Even though we started a bit later because we waited for another group and since we also were understanding english the language was changed to English to make it more confortable for the guide, we had a great experience and we were happy with the tour, explanations and food. Thanks!

September 22, 2022

The ATM tour was so awesome and I’d recommend anyone visiting Belize to do this activity. There was hiking, climbing, swimming, stalactites, stalagmites, and getting a glimpse of the Mayan culture through calcified artifacts and human remains. Although the tour guide seemed a bit reserved in the information he provided, he was very friendly and tried his best to answer any questions asked. Overall it was a tour I’m happy I did and would even consider doing it again if i find myself in Belize again.

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November 14, 2021

My husband and I had an amazing time on this tour with our driver Jeremy and guide Fernando. Fernando was knowledgeable and attentive to our safety while we were in the cave. I was concerned about the river crossings and some of the physical demands required of this tour but Fernando was helpful. I know some others complain about the bumpy ride but it's nothing compared to the drive out to Caracol. The food and rum punch was a life saver after such an exhausting day! All in all, it was a great experience and a must-do adventure if you are in Belize.

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June 30, 2021

Product ID: 176307