Sistema Nohoch Nah Chich, Underground cave system in Tulum Municipality, Mexico
Sistema Nohoch Nah Chich is a limestone cave network stretching across dozens of kilometers beneath the surface of Quintana Roo, descending to depths approaching 70 meters in places. The structure connects underground freshwater springs and opens to the surface at 36 different cenote access points throughout the region.
The cave system was discovered in 1987 by divers who began systematic exploration and documentation of this underground network. This work revealed the scale and complexity of one of the region's most extensive subterranean passages.
The name comes from the Yucatec Maya language, meaning "Giant Bird Cage System," reflecting the indigenous roots of the region. These caves held spiritual importance for the Maya people as sacred water sources connected to their beliefs about the underworld.
Visitors can access the system through various cenotes scattered throughout the area, with some entry points closer to the coast than others. It helps to learn which cenotes best suit your planned activities before deciding where to start.
The system connects directly to the Caribbean Sea through underground channels, allowing saltwater from outside to interact with freshwater inside. This mixing creates an intricate underwater environment that continues to fascinate divers and researchers.
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