Sistema Sac Actun

The Sistema Sac Actun cave system in the Yucatán peninsula is recognized as the world's largest and longest underwater cave system after discovering the two largest interconnected cave systems in the Mexican peninsula. And of course, it ranks the first place on our list of the most beautiful caves in Mexico.

This majestic cave is one of the most important undersea archaeological sites in the world. The cave has more than hundreds of archaeological relics, one of the discoveries that prove the first American arrival on the peninsula, as well as finds evidence of the fauna of the region extinct and relics of the ancient Mayan culture.

This cave has a water level extending over 345 kilometers. It is widely believed that the water level in this cave has changed more or less over time when it is possible that the amount of water around the peninsula could be used to supply water during periods of severe drought. There was a period of the end of the Ice Age when the water level in the cave increased by 91 meters, causing the cave system to be completely submerged, leaving traces of prehistoric animals. However, it is worth mentioning that the cave is completely submerged so humans cannot live here, but remains have been found in a few areas here.

This is truly a one-of-a-kind area in the world, where a treasure trove of archaeological artifacts is preserved and located intact in the cave. This is known as a wonder that every visitor cannot ignore when coming to Mexico.

Location: Quintana Roo, Mexico