Actun Tunichil Muknal Cave Tour and Picnic: the 9-hour ATM cave tour
Nine hours from the operator's office on Burns Avenue, with a swim into the cave mouth and about three hours among Maya ceramics, altars and the Crystal Maiden.
Updated 2 November 2026
In shortThe Actun Tunichil Muknal Cave Tour and Picnic is a 9-hour day from San Ignacio: a 45-minute drive to Tapir Mountain Nature Reserve, a 45-minute jungle hike, a swim across the spring-fed pool at the entrance and roughly 3 hours underground with a specially licensed guide, who works in English. Transport from the operator's office, helmet, headlamps, life jackets and a picnic lunch with a drink are included, from $145 per person. It suits travellers already staying in San Ignacio or Santa Elena who are comfortable in water and on their feet for a full day.
9 htour length
from $145per adult
★ 5.01,507 reviews
What this ATM cave tour includes
This ATM cave tour is the most reviewed day on the site: 9 hours in total, from $145 per person, ★ 5.0 (1507 reviews). It starts at the operator's main office at 19 Burns Avenue in San Ignacio, between Tandoor Restaurant and Belize Bank, and the trailhead is a 45-minute drive from there.
Transport from that office is included, along with a specially licensed guide, helmet, headlamps and life jackets, a 3-hour walking tour of the cave system and a homemade picnic lunch with a drink once the group is back at the vehicles. Hotel pickup is arranged only if you ask for it, and gratuities are not included.
Inside, the dry upper chamber holds stoneware, ceramics and altars along with the calcified Crystal Maiden and the remains of 13 other men, women and children. National Geographic ranked Actun Tunichil Muknal the world's number one sacred cave. Footwear comes off in the artifact chambers, socks are compulsory, and no cameras or electronic devices have been allowed inside since the government rule of May 2012, after a dropped camera damaged a skeleton: the guide carries the only dry bag.
Book this one early in your Belize trip. Access to the reserve is capped at 125 visitors a day across all licensed operators, dates sell out, and heavy rain between May and November can close the cave for a day, so a spare day after the tour is worth keeping.
Actun Tunichil Muknal Cave Tour and Picnic
Nine hours from San Ignacio with a specially licensed guide: 45-minute drive, 45-minute hike, a 3-hour walking tour of the cave system and a picnic lunch at the vehicles afterwards.
Actun Tunichil Muknal (ATM) Actun Tunichil Muknal means Cave of the Stone Sepulchre, and it was a ceremonial site where the Maya made offerings and sacrifices during long droughts. The cave is geologically striking, with crystalline stalactites and stalagmites, and it works as a natural museum of ancient Maya artifacts and a burial place. The guides on this tour have led government officials, National Geographic, Discovery Channel, British High Commission and US Embassy visitors inside. The site is reached by a 45-minute drive from the operator's office in San Ignacio.
Tapir Mountain Nature Reserve, the hike and three hours underground300 min Vehicles enter Tapir Mountain Nature Reserve and park at the ranger post, and everything after that is on foot: roughly 45 minutes of hiking through the jungle to the cave entrance. Access is by water, swimming across a small spring-fed pool and wading into the underground maze of tunnels, passageways and chambers that ends in the ceremonial chamber with the stoneware, the ceramics and the crystallized skeleton of the Crystal Maiden. The group spends about 3 hours in the cave with the guide, then hikes back out to the vehicles for a homemade picnic lunch with water and soft drinks before the drive to San Ignacio. The operator rates the difficulty moderate: the swimming is easy, life jackets are provided for non-swimmers, and a guide escorts them.
Photos: ours and the tour operator's
What is included
Included
Transport to and from the operator's office in San Ignacio
A specially licensed guide inside the cave
Equipment: helmet, headlamps and life jackets
A 3-hour walking tour of the cave system
Lunch with a drink
Not included
Hotel pickup and drop-off, arranged only on request
Gratuities
Meeting point, pickup and ages
Meeting point: the operator's main office at 19 Burns Avenue, San Ignacio Town, Cayo District, located between Tandoor Restaurant and Belize Bank. The tour returns to the same point.
Departure point for most tours: downtown San Ignacio. Pickups from other locations in Belize can be arranged with the operator and may carry an additional charge, so ask before the tour date.
Ages as listed by the operator: child 6-11, adult 12+.
NICH policy admits only visitors at least 40 inches tall, photo ID is required, and a modest dress code applies: swimwear-style tops and sleeveless shirts are not permitted.
Groups are small by rule: a maximum of six visitors per ATM-certified guide, with larger parties split between guides.
How this ATM cave tour compares with the other options
The Maya Sacrifice departure runs 7.5 hours at the same from-price, which helps if you have an afternoon flight out. The sit-down lunch version runs 7 hours, the Xunantunich combo adds a Maya temple and the hand-cranked ferry across the Mopan River to the same cave day, and this page's tour is the one to take if you want the standard full day with the longest review record.
Tour
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Actun Tunichil Muknal Cave Tour and Picnic (this page)
Departures leave early, around 7:00 to 8:30 am, and access is capped at 125 visitors a day across all licensed operators, so dates in the December to April dry season go first.
