This offbeat natural gem is a very impressive place to visit. You'll see various unusual cave formations here.
More information http://www.mundomaya.travel/en/arqueologia/campeche/item/xtacumbilxunaan.html
Address Carretera a Grutas de Xtacumbilxunaan, Mexico
Coordinates 19°59'27.946" N -89°45'51.458" E