Cave tours developed centuries ago, from locals which were showing "their cave" to foreigners. It had two reasons, why cave guides were installed, to protect the visitors from the dangers of the cave, and to protect the cave from being damaged by the visitors. The first official cave guide of the world was Hans Jürgen Becker, who became cave guide in Baumann's Cave in the Harz Mountains in Germany in April 1668.
However, despite the honorable work of the cave guides, most of them are only locals, which do not know much about caves. And many have strange ideas about caves, which they tell the visitor with enthusiasm. Here are some typical stories about this.