Actun Tunichil Muknal (ATM) Cave Tour

Travel back in time following pathways used by the Maya and discover lost treasures that have been hidden deep within the jungle for centuries. This excursion unveils the mysteries and secrets of the Maya underworld. Witness spectacular views of the jungle, while fording rivers and trekking remote jungle trails. See burial chambers with calcified remains, ceremonial vessels and other cultural artifacts left by the Maya centuries ago.
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Artifacts often are looted from caves following their discovery. Because of this, passage through this cave is known to only a few select guides who have permission from the Belize Department of Archeology to take visitors to this special cave. To this day, the ATM cave has not been looted and nearly all of the cultural artifacts have remained in place as they were originally found in 1989.   Please note that while this is an AWESOME adventure it also is a challenging one -- a good level of physical fitness required! You will hike over one mile into the jungle including fording a shallow river. You will need to swim a short distance across a pool of water to get into the cave. (Life jackets provided upon request.) Hiking inside the cave is sometimes through water and always on and over rocks and boulders. Once inside the ceremonial chambers, you will need to hike in your socks. All this is done with the only light being from headlamps and flashlights. Remember, to get out, all this must be done in the reverse! This certainly is not Disneyland, but the real deal!

More Information

  • Price Price: US $330
    per person
  • Intensity Intensity:
  • people Minimum: 2
  • Depart Depart: 7:00 am
  • Return Return: 5:00 pm


  • Entrance Fee

  • Towel

  • Lunch

  • Cookies

  • Juice

  • Water

  • Headlamps

  • Safety Gear

What to Bring:

  • Sunscreen

  • Hat

  • Shorts

  • T-shirt

  • Socks

  • Sturdy Shoes or Boots

  • Change of clothes

  • Insect Repellent

Other Information:

Minimum height requirement of 40 inches

Intensity Key:

  • Easy
  • Moderate
  • Challenging
  • Very Challenging
[More general information about our tours]

Everyday, Hamanasi offers a barrier reef excursion and an inland excursion based on a preset schedule. These scheduled tours are included in package rates. Tours beyond the daily scheduled tours are not included in package rates but can be booked at the listed cost. All tours are accompanied by a licensed Belizean tour guide and include any permits needed. A PADI professional accompanies all dive trips. More information about our tours is available on our rates and policies pages.

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Room beautifully decorated and clean! The entire staff was extremely helpful & courteous. Food was the best! Tour guides extremely knowledgeable!

Everything here is perfect for honeymooners and active travelers! Beautiful grounds, tons of interesting tours and good food & drinks to help you relax and enjoy yourself

We appreciate that Hamanasi is able to provide exceptional experience for visitors while working to maintain the wonder of Belize.

Just keep doing what you’re doing… The Mayan tour history was incredible; the guide was extremely knowledgeable and profoundly connected to his heritage.

I’ve been to quite a few dive resorts. Hamanasi is hands down, the best so far. Thank you for a wonderful time.

Everything surpassed our expectations. We came here as new diver because we wanted an operation we could trust and we found that here.

Overall, great experience! Staff made you feel extremely welcome and tended to your every need. Tours gave you a taste of Belize and the resort gave you a taste of heaven!

This is my 6th Belize dive adventure in the past 18 years and my best ALL around experience.

Wonderful stay, beautiful surroundings. The staff was unfailingly friendly and accommodating. Adventures were great and well organized!

Wonderful warm staff, excellent guides, variety of inland tours, very comfortable rooms

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Explore these images taken on our Actun Tunichil Muknal (ATM) Cave Adventure - click any image to expand.

Meet Our Guides

Our guides love what they do-and you'll love them