There is Hawaiians spa resort in Fukushima prefecture, Japan. Their site was a coal mine until 1980'. Although their business was getting worse due to the reduction in the social demands for the coal. So, they decided to change their business into the tourism. They have been suffering from taking care of natural hot spa water during mining, but they hit the idea they could make spa resort by taking advantage of the abundant hot spa water. sembra naturale?

There is a Hawaiian spa resort in Fukushima prefecture, Japan. The site was a coal mine until 1980. As their business gets worst due to decreasing demand for coal, they decided to change their business to tourism. They have suffered taking care of the natural hot spring while they are still in the mining business and an idea that they could take advantage of the abundant hot speing by creating a spa resort hit them.

Note that I’ve changed spa to spring as I think it is more appropriate if you are referring to a hot body of water that are usually found near volcanoes.