We went a couple of years ago. It was so fun! We stayed in a little motel a few miles away (I can't remember the name of the place). If I recall, we paid a deposit to rent a set of screens, a shovel and a bucket. You pick a spot, put some dirt into your bucket and then go to a covered area that has water filled trenches. You put a little dirt into your screens and wash them in the trenches. The dirt washes away and you see what you have left. You get to keep whatever you find. Remember to bring something to keep your "haul" in (we used plastic cups). When you are done for the day, you return the stuff you rented and they will identify what you found. Wear old clothes because you will get wet and dirty. Have fun. I had a blast and would like to go again.