Answer:
There are a couple of spa towns - mainly in Europe - For example Romania has a few natural mineral rich Spa Towns like: Sovata, Felix, Buzias, Slanic Prahova and so on. You can see how all this look like or what they offer into the links. If you check wiki you can also find a full list of Spa Towns - all over the world. I suggest you check them as the thermal / mineral waters are the best thing for any bone problems or simply skin treatment - they are also a great place for relaxation.