Ele?­vators take you 100 m (328 ft) down to a sub?­ter?­ra?­nean river for a spooky boat ride past gigantic stalactites and stalagmites, formed by the calcite residue and deposits of thousands of years of persistently dripping water.
There are stalagmites formed from thousands of years of drippings.
Balding man with a beard who has fallen asleep leaning on another man next to him, against the rails of a set of stairs.