🔦 Belize ATM Cave: My Honest Review & Tips

The Actun Tunichil Muknal (ATM) Cave is a sacred site in Belize that contains sacrificial human remains. Using a clear rating system, I share my honest review of the experience, along with firsthand tips.

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🍀 Lukiih’s Verdict

The ATM Cave is a must-do experience in Belize. The cave was the highlight of my trip.

• The cave plunges four miles deep into the earth and requires hiking, climbing, spelunking, and swimming, making it a great adventure.
• Due to the cave’s cultural importance and delicate nature, you’re required to hire a licensed tour guide. The tour is moderately priced and includes transportation and lunch.
• Minimal preparation is required, as you only need to book a guide in advance (especially during the high season) and wear appropriate clothes and shoes.

Phones and cameras are prohibited, so you won’t see recent, unofficial photos of the ATM Cave.

Planning a trip? Here’s what to know about Belize.

🏆 Where Does It Rank?

The ATM Cave ranks as the #1 experience I had in Belize. Here’s how it compares to other things I did on my trip:

	Experience	Location	Overall Rating
1	🔦 ATM Cave	San Ignacio	8.5
2	🤿 Hol Chan Marine Reserve Snorkeling	Ambergris Caye	7.5
3	🦎 Green Iguana Tour	San Ignacio	6.4
4	🐴 Xunantunich Horseback Ride	San Ignacio	6.2
5	💧 Swimming Dock	Ambergris Caye	6.1
6	🌊 Caye Caulker Day Trip	Caye Caulker	5.7
7	👟 Explore San Pedro	Ambergris Caye	5.6
8	🌮 The Truck Stop	Ambergris Caye	5.5
9	🏖️ Secret Beach	Ambergris Caye	5.0

My Belize itinerary features the above experiences.

✈️ About My Trip

For context on my review, here’s what to know about my trip:

• I finance my trips and don’t receive sponsorship; this review reflects my honest opinions.
• This post has updated 2024 information, but I visited the ATM Cave in 2022.
• My Belize trip was in July when it was less crowded and expensive.

• The ATM Cave is a very rare experience. I estimate that fewer than 10 comparable caves exist worldwide. It is the most famous sacred cave with skeletal remains that is open to visitors. The sacrificial remains are among the most well-preserved (the Maya used the cave for ritual ceremonies).

National Geographic has called the ATM Cave one of the world’s top sacred caves. It’s home to the famous “Crystal Maiden” and more than ten other human skeletons.

• The journey is memorable and adventurous, requiring some swimming, climbing over rocks in dim light, and carefully walking through a fragile portion with just socks.
• Learning about the Maya culture in close proximity to multiple skeletons is also remarkable.

Read on for the ATM cave’s itinerary.

• Other Maya caves and sites with sacrificial remains exist throughout Central America, such as Chichén Itzá and Loltun Cave in Mexico.

• It’s a fun adventure that involves crossing three rivers, swimming in darkness, wading through tight crevices, and scrambling up a tall rock. Although thrilling, it feels safe as everyone is required to go with a licensed guide.
• It feels rewarding to spend nearly five hours hiking, swimming, and exploring a cave system. Learning about the Maya culture and the reasons for the human sacrifices is also educational and enriching.

• Despite the Belize government limiting the number of visitors, the area where all the Maya artifacts are located is very crowded. It will feel cramped at times.
• The cave is accessible to the public through licensed guides, so it won’t feel like a big adventure for people with more cave experience.

The ATM Cave requires a licensed guide, and hiring one costs between $110 and $125. The tour lasts about eight hours and includes lunch, transportation, and gear.

Tipping is customary for tourists in Belize, so expect to add another $10 to $15 to the total.

I booked my tour with a highly-rated MayaWalk and paid $120 during the low season. Prices of other well-rated tour companies (I last checked in December 2024):

• Cayo Inland Expeditions: $145
• Belize Family Adventure: $120
• Belize Caving Expeditions: $120

Only 125 people are allowed in the cave per day. During the high season (late November to mid-April), the cave is usually booked out one to two weeks in advance.

See my Belize trip expenses.

• You need minimal skills and fitness to complete the ATM Cave:
  • Hiking – The one- to two-hour hike is flat and mostly shaded as you walk through the jungle, so it’s not strenuous.
  • Swimming – The guides can accommodate visitors who don’t know how to swim. You’ll wear a life jacket the entire time.
  • Climbing – Climbing is only required at two parts of the journey inside the cave:
    • Right before reaching the Maya artifacts, you’ll be instructed on how to climb a rock. If you have any rock climbing experience, this part will be easy.
    • Before reaching the Crystal Maiden, you’ll also need to go up a ladder.
  • Claustrophobia – The guides can accommodate claustrophobic visitors. They can take several paths, so you can take a route with more open spaces.
  • Constraints – Guides do not recommend visiting the ATM Cave if you’re pregnant, have a walking disability, or have a heart condition.
• Pickup for the ATM Cave is in San Ignacio in the Cayo district. The cave is 20 miles east of the town in the Tapir Mountain Nature Reserve, so it’s a straightforward, hour-long drive on well-paved roads.
• Book a licensed guide at least a day ahead during the low season and 1-2 weeks ahead during the high season. Also, wear appropriate clothes and shoes. Gear will be provided, so you don’t need to rent it at an extra cost.

There are about 25 licensed guides for the ATM Cave tour. Most of them have been doing this excursion for over a decade as it requires extensive training.

How To Guide & Tips

Interested in doing the ATM Cave after reading my review? Below is a practical how-to guide and firsthand tips.

Itinerary

The ATM Cave tour is an eight-hour day trip regardless of which tour company you book with and here’s how it breaks down:

Timing	ATM Cave Itinerary
8–9 am	Pickup & drive – The guide will pick you up in San Ignacio and drive you to the start of the hike.
9–9:15 am	Gear up – You’ll gear up (e.g., put on helmets and life vests) and leave all your belongings in the vehicle (e.g., cell phones, dry clothes).
9:15–10 am	Easy hike – You’ll hike a flat, shaded path to the cave entrance. There will be three river crossings that range from shin to chest-high.
10–1 pm	Cave exploration – You’ll do a short swim in deep water to enter the cave and then explore it before reaching the famed Crystal Maiden.
1–2 pm	Cave exit & hike back – You’ll exit and hike back to the vehicle.
2–3 pm	Dry off & lunch – You’ll switch to dry clothes (there’s a bathroom facility), and lunch will be ready in an open area near the parking lot.
3–4 pm	Drive back – The tour ends with the drive back to San Ignacio.

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Is It Safe

The ATM Cave is considered safe to visit because you must go with a licensed guide with extensive training. You’re also provided with the necessary equipment (e.g., a helmet with lights and a life jacket).

However, there are always associated risks when going on adventures like this one:

• You can get injured if you hit a rock while wading through water.
• You can get lost if you stray from your guide or group.
• You may panic if you feel too claustrophobic.
• You can get temporarily stuck in the cave if the water rises too rapidly.

I had no safety concerns when visiting the ATM Cave.

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What To Pack

You’ll be in water 80% of the time and doing activities ranging from hiking and swimming to climbing, so it’s important to wear and pack the right clothes for the ATM Cave.

• Closed-toe shoes – This is a requirement. Water shoes are adequate as long as they have traction or grip. I purchased these water shoes, and they worked well. My friend bought these water shoes with more traction and recommends them as well.
  • I considered getting Keens, but I think they’re overkill. Some people wore them and said they liked the extra protection.
  • Tennis shoes are not recommended unless you don’t mind having wet shoes for a while.

Some tour companies include shoes as part of the package. However, they have a limited supply, and the shoes may be less comfortable.

• A moisture-wicking top – Most visitors wore tanks or short sleeves, but the guides wore long sleeves for some warmth, so I wore a moisture-wicking sun hoodie.

You might initially feel cold, but once you start moving, you won’t feel it even when in the water.

• Swimsuit – Wear a bathing suit underneath your clothes.

Bikinis are technically not allowed, but no one will bother you as long as you have a top covering it, which is what I did.

• Shorts or leggings – Most people wore shorts (I wore quick-dry shorts). Wear leggings or long pants if you’re concerned about scratches during cave exploration.
• Socks – You’re required to wear socks during some portions of the journey for cave preservation purposes.

Consider bringing throwaway socks if you don’t want to deal with wet or muddy socks afterward.

• Reusable water bottle – The guides recommend bringing snacks and water on the hike to the cave. I carried my insulated water bottle, which kept my water cold for hours.
• Snacks – Your guide will make a stop for snacks before the hike.
• Dry shoes or sandals – You’ll want to change into dry shoes or sandals after the tour. I wore my Chacos to let my feet air dry.
• Quick dry towel – You need a towel to dry off before lunch. I brought these quick dry towels, which worked great throughout my Belize trip.
• Cash – Bring cash to tip the guide afterward. The guide will also be the driver.

A 10% to 15% tip is appreciated in Belize. See more tips on using cash in Belize.

• Plastic bag – Bring a bag to hold wet clothes. I purchased cheap dry sacks specifically for this trip.
• Change of clothes (optional) – If you want to wear something other than what you initially wore before the hike, bring a change of clothes.
• First aid kit (optional) – Bring a kit for any scratches you get during the cave exploration. I brought one with me but didn’t use it.
• Sunglasses (optional) – Some people liked wearing sunglasses for the hike back after being in darkness for hours.
• Bug spray (optional) – You won’t need bug spray for the hike and cave (it’ll get washed off), but you might want it for lunch since you’ll eat in an open-air area. I get bitten often and think bug-repellent lotion works better than spray alternatives.

What Not To Pack

• Dry bag for carrying things – You are not allowed to take a bag with you during the hike or cave, but they’re useful afterward for separating wet clothes.
• Waterproof phone case – Phones are prohibited during the hike or cave exploration, so you won’t need this. They are very strict about this.
• Sunscreen – Sunscreen will wash off at the beginning of the hike, and you won’t need it for the cave or lunch since the area is shaded.

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