Among the most splendid are the cenotes—natural sinkholes that offer a window into the Yucatan’s underwater ... the stars of ...

Here are some of the most awesome geological wonders from around the world. Tulum in Mexico is famous for its cenotes Cenotes (pronounced seh-noh-teys) are essentially huge sinkholes in the ground ...

A cenote is a natural sinkhole filled with groundwater. This one, Cenote Ik Kil in Mexico's Yucatan Peninsula, is about 90 feet below ground level — and the water itself is around 130 feet deep.

What de Anda has been waiting anxiously for his friend Montero to determine is whether the water at the bottom of this nondescript natural well, or cenote ... lower third of Mexico, as well ...