What does a cave look like?

Answer 1

a hole that's dark and made in dirt

+++ Ignore that daft comment. Try looking at show-cave web-sites (just type the cave names into a search-engine and look for the sites evidently from the proprietors, local tourist offices etc.).

Though not entirely typical they will give you a fair idea - but look at the cave passage as a whole (!) as well as the stalactites forming the main subject of the photos, and try to imagine the scene without the concrete paths and hand-rails.

Also try looking for web-sites run by caving-clubs. Not all do, but some show good cave photos among snaps of people dangling on ropes above big blacknesses or grinning through tight squeezes!