Turn day to night as you step down into the dark recesses of Grottes de Dargilan. Armed with a trusty flashlight and a taste for adventure, there's no telling what you might discover down there.
If you're after some free fun in Meyrueis, you can't go past this natural underground attraction. It's a popular attraction in the area and a great first stop for the day. When you're done at Grottes de Dargilan, consider paying a visit to Aven Armand Cave, which is nearby.