Freshwater sinkholes are natural holes or depressions in the ground that collect and hold freshwater. They act like large underground ponds or lakes that can be found in certain areas. Full definition
Hang tight before zooming on thrilling zip lines above the Mayan jungle treetops and freshwater sinkholes called cenotes, then relax back at the beach as you soak in the sun and the good Caribbean vibes. (amstardmc.com)
The limestone sub strait of the Yucatan is flooded by underground rivers, which surface in freshwater sinkholes known as cenotes. (caradonna.com)
Tres Ríos is home to ten cenotes (cave - like natural freshwater sinkholes), 120 species of plants and 131 species of animals. (haciendatresrios.com)