This is a great setup, whether you're a serious mineral collector or just want to go out with some friends or family to hammer on rocks and look at the pretty colors. They are set up to accomodate both types. Bring a picnic, otherwise they have the menu from a pizza place that delivers. We definitely went as the hammers-and-pretty-colors variety. The people were nice, and we had a great time. Prices are posted on their web site--12 euros adult admission including 8kg of rocks, and rental of pails and hammers was inexpensive. So this is a cost effective day of fun. We were all adults, but the kids we saw around us seemed to be having a great time. Note: The location shown on Yelp is wrong for the hobbyist location! I think this may point to their commercial mine. Use the directions on their web site instead. read more