Actun Tunichil Muknal (ATM) is one of the most popular and impressive Maya ceremonial caves ever found. ATM was in use during the early classic period, which dates to around 300-600AD. The caving part of the tour, takes you through a subterranean river, over (and under) more than a few rocks and into the main chamber.
The ATM Cave is a wet cave – you swim into the mouth and then wade through ankle to chest high water before climbing to a intricate passageways of dry chambers which lead to the cathedral-like main hall, a towering chamber 350 metres in length and 50mteres wide and filled with artefacts and sacrificial remains. After this another climb takes you to the stone chamber where the ...
Highlights
9 hours
Offered in English & Spanish
Free Cancellation
Mobile Ticket
9 hours
Offered in English & Spanish
Free Cancellation
Mobile Ticket
What's Included
Private transportation
Bottled water
Lunch
All Fees and Taxes
Air-conditioned vehicle
Alcoholic Beverages
Important Information
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Specialized infant seats are available
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Travelers should have at least a moderate level of physical fitness
Cancellation policy
For a full refund, cancel at least 24 hours before the scheduled departure time.
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For a full refund, you must cancel at least 24 hours before the experience’s start time.
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Cut-off times are based on the experience’s local time.
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If you cancel less than 24 hours before the experience’s start time, the amount you paid will not be refunded.
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This experience requires a minimum number of travelers. If it’s canceled because the minimum isn’t met, you’ll be offered a different date/experience or a full refund.
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Any changes made less than 24 hours before the experience’s start time will not be accepted.
Become our Lokal Curator
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Take a journey into the Mayan underworld at Actun Tunichil Muknal, or the “Cave of the Stone Sepulchre”, will be one of the most enlightening, epic, and unique experiences of your life. Leave the world of the living behind as you venture into the heart of the ATM Cave with your licensed guide.
Actun Tunichil Muknal (ATM) is one of the most popular and impressive Maya ceremonial caves ever found. ATM was in use during the early classic period, which dates to around 300-600AD. The caving part of the tour, takes you through a subterranean river, over (and under) more than a few rocks and into the main chamber.
The ATM Cave is a wet cave – you swim into the mouth and then wade through ankle to chest high water before climbing to a intricate passageways of dry chambers which lead to the cathedral-like main hall, a towering chamber 350 metres in length and 50mteres wide and filled with artefacts and sacrificial remains. After this another climb takes you to the stone chamber where the ...
