Naica’s Crystals Cave, maybe the most amazing underground wonder on Earth, was discovered by chance inside the deep mine of Naica, in the State of Chihuahua, Mexico. It is a true ... ranging from ...

You can take boat tours through ... off the coast of Mexico’s Yucatán Peninsula, Cueva de las Sardinas is a hidden gem for cave divers. The entrance is surrounded by crystal-clear waters ...