Actun Tunichil Muknal (Cave of the Stone Sepulcher) dubbed by National Geography as the top sacred cave to explore in the world; should be on your bucket list! Here, our guides will provide you with a helmet, headlamp, and life jacket if needed. When geared up, it’s now time to hike, wade and swim the sacrificial Mayan underworld of the ATM. There’s 3 river crossing and a 30-minute hike, which will bring you to an hourglass entrance. From here, the cave system spans approximately 3 miles with stalactites, stalagmites, jarring boulders and freshwater streams from ankle to waist deep.

Walking bare feet, deeper into the underground surrender will unearth untainted Mayan history dating back 1-1000 AD. Pottery, ranging from intact to completely shattered; tools, ceremonial items, and the skeletal remains of 14 bodies on display, from finger bones to skulls, among other skeletal remains, fused to the bare ground within a few feet steps.

Not recommended for travelers with spinal injuries

Not recommended for pregnant travelers

Not recommended for travelers with poor cardiovascular health

Travelers should have at least a moderate level of physical fitness