What’s thermal tourism center ?
Thermal spas and springs, theraputic centers build over fault lines with high mineral content water. Some people swear that it cures ailments. They’re popular in France, of course, Turkey, a few other places. In some of these there are fish that actually eat the dead skin off the bathers. I read once about a spring in France where they found very low-level radiation in the water sometime in the early 1900’s, and this led to the belief that the radiation was theraputic. So someone got the bright idea to market mineral water containing radium and thorium. It led to a few unpleasent deaths before they discovered that radiation is bad for you.