One of the largest cave systems in the world open to the public, in the mountains of Guerrero. The main tour walks a lit path through a series of vast chambers, some more than 80 metres high, past enormous stalagmite formations with names, and two rivers run out of the mountain nearby. A river actually flows through the lower system. It has been shown to visitors since the 1800s. PUBLIC guided tours, near Taxco.
Mexico
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