Wade river crossings, stoop through limestone passages and stand before the "Crystal Maiden" on a full-day guided expedition into Actun Tunichil Muknal. This tour blends jungle hiking, Mayan history and protected cave archaeology into a demanding and unforgettable day.
More ways to explore the area's outdoor wonders
You enter the jungle before you see the cave—green walls closing, humidity pressing a slow, wet hand against your shirt. The trail drops to a ribbon of river that dares you to cross; your guide counts the steps and points toward a low limestone opening where daylight is swallowed. Minutes later you’re under rock, helmet light carving through a cathedral of formations. Stalactites drip like a slow clock. The air smells of mineral and wet stone. This is Actun Tunichil Muknal—ATM—the Mayan underworld made of cave passage and preserved ceremony.
Difficulty
challenging
Duration
8–9 hours
Fitness Level
Good cardiovascular fitness and agility for river crossings, short scrambles, and sustained standing in cave passages
Wildlife
History
Maya used caves like ATM for ritual offerings and burials; many artifacts left in situ date to the Classic Maya period.
Conservation
Access is tightly controlled to protect fragile archaeological material and delicate speleothems; follow guide instructions and avoid touching formations.
Reserve your spot on the ATM Cave Adventure "Actun Tunichil Muknal" (from Belize City) today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Wear quick-drying, grippy shoes
Expect wet river crossings and slippery limestone—closed-toe water shoes or lightweight hiking shoes with good tread are best.
Leave jewelry and loose items at the hotel
Small items can scratch formations or be lost in the cave; secure valuables before departure.
Hydrate and eat beforehand
It’s a long day with physical exertion and limited food options until the included lunch—carry a refillable bottle.
Respect no-touch zones
Do not touch or handle artifacts or formations; guides enforce this to protect archaeological material.
Quick-drying hiking/water shoes
Grip and drainage for river crossings and slick limestone
summer
Dry bag (small)
Keep phone, camera and extra layers dry during crossings
Headlamp with fresh batteries
Guides provide lights, but a personal headlamp adds backup and frees hands when changing positions
Light rain shell
Useful during Belize’s wet season for the jungle approach and post-tour comfort
fall