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.

While popular spots like Cenote Ik Kil attract many tourists and can be expensive, many cenotes remain an accessible and ...

Cenotes were one of the first things that drew me to Tulum when I saw these underground paradise pictures from Instagram. If ...