We were recommended to visit. It was an interesting visit. We had a guide which added a lot of value. He was very knowledgeable and provided a lot of insights at the various stops on the tour. We toured the refurbished building which I am not sure was worth the trek through the sand but cool to get into another building. History of how they mined and how they treated the “contract” workers was the most fascinating. Bring a jacket. It can be cool, and windy.