Skip to content


A cenote is a natural sinkhole or pit that forms when the roof of a cave collapses, exposing the groundwater below. Cenotes are a unique geological feature found primarily in karst landscapes, where soluble bedrock, such as limestone, is prevalent. These sinkholes are often associated with underground cave systems and are particularly common in regions with tropical climates.

Cenotes can vary in size and shape, ranging from small depressions to large open pools. Some cenotes are completely open, resembling freshwater ponds or lakes, while others may be partially covered by rock and vegetation, creating a partially enclosed environment.

Cenotes play an essential role in the hydrological cycle of karst landscapes. They serve as natural reservoirs for freshwater, collecting rainwater that percolates through the ground and fills the underground cave systems. Cenotes also contribute to the replenishment of aquifers, which are important sources of drinking water in some regions.

Cenotes are not only vital for their hydrological significance but also hold cultural, ecological, and recreational value:

1. Cultural Significance: Cenotes were revered by the ancient Mayan civilization in the Yucatán Peninsula of Mexico and other nearby regions. Many cenotes were considered sacred and used for rituals and ceremonies. Some cenotes even served as sacrificial sites.

2. Ecological Importance: Cenotes often support unique ecosystems adapted to the specific conditions of these environments. They can provide habitats for a variety of plant and animal species, including fish, amphibians, and aquatic plants.

3. Recreation and Tourism: Many cenotes are popular destinations for tourists and divers due to their clear, blue waters and the opportunity to explore underwater cave systems. Cenote diving offers a unique experience to discover hidden passages and stunning rock formations.

4. Conservation: Protecting cenotes is crucial for maintaining groundwater quality, supporting local ecosystems, and preserving cultural heritage. Some cenotes are part of protected areas or designated as natural monuments to ensure their conservation. Cenotes are found in various parts of the world, but they are particularly associated with the Yucatán Peninsula in Mexico, where they are a prominent feature of the landscape. The Mayan name for cenotes is “dzonot,” which signifies a place where water is accessible.