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

Belize



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.

Actun Tunichil Muknal Cave Tour near San Ignacio for adventure and archaeology enthusiasts

Depart from San Ignacio for a 45-minute van ride to Actun Tunichil Muknal (ATM) Cave Park Reserve. Suited for small groups, the tour combines hiking, swimming, and cave exploration guided by experts.

Highlights

  • Explore remarkable geological formations including stalactites and flowstones
  • Discover the cave used by ancient kings and shamans for spiritual communication
  • Swim in crystal-clear underground river waters

Description

Upon arrival, groups are divided into small parties of six per guide. After a safety briefing and gear fitting, the tour begins at the first of three river crossings. The deepest crossing uses a rope guide, while the others are ankle-deep.

A 45-minute hike leads to the cave entrance. The guide swims across the river for a safety demonstration before the group follows. Enter the cave by swimming and walking through the main water passage toward a dry chamber.

Visitors remove shoes before entering the dry chamber to protect archaeological artifacts on the cave floor. Learn about ancient rituals involving offerings and human remains, including 15 skeletons uncovered by archaeologists.

The final chamber is accessed by climbing a ladder to view fully preserved skeletal remains. The exit is via the same route, followed by a hike back to the parking area. The tour concludes with lunch before returning to San Ignacio.

Includes

  • Entrance fees
  • Water
  • Chips with salsa
  • Lunch
  • Professional tour guide
  • Transportation
  • Equipment rental

Excludes

  • Gratuities (optional)

Important Information

  • Cameras are not allowed inside the cave
  • Bring a complete change of clothes, closed-toe footwear, socks, mosquito repellent, towel, and reusable water bottle

Cancellation Policy

Cancel up to 24 hours in advance for a full refund.

For the best experience, book in advance and wear comfortable, water-friendly footwear. Morning departures are recommended to avoid afternoon heat and potential rain.

Frequently Asked Questions

The ATM Cave is located near San Ignacio in Belize's Tapir Mountain Nature Reserve.
You will see sparkling stalactites, flowstones, ancient skeletons, and artifacts left by Maya kings and shamans.
The tour involves moderate hiking, swimming in underground water, and some climbing, suitable for active individuals.
Children aged 10 and older can join, but younger children are generally not recommended due to physical demands and safety.
Safety gear like helmets and flotation devices are provided by guides upon arrival at the park.
The tour includes a 45-minute van ride plus several hours of exploration, lasting most of the day.
Yes, swimming in crystal-clear underground pools is part of the experience.
Photography is permitted in designated areas but restrictions apply to protect the site.
Dry season months are ideal, but check local weather and availability before booking.
Advance booking is recommended to secure your spot as group sizes are limited.

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