Felsentherme Spa is definitely a place worth seeing.
If you do decide to visit, your adventure will take you to Bad Gastein, 80 miles (129 kilometers) outside of the state capital, Innsbruck.
You can save some of your hard-earned cash for what you really love when you enjoy a few nights at one of the sensibly priced hotels that are not too far away. You can have a look at the Appartementhaus Winkler and the Gästehaus im Pfarrhof.
Spoil yourself and stay at one of the upscale establishments in the area. Highly recommended are the CESTA GRAND Aktivhotel & Spa (ehem. Hotel EUROPÄISCHER HOF) and the Mondi Holiday Bellvue, located a mere 1 mile (2 kilometers) and 0.3 miles (0.5 kilometers) away, respectively.
Soak up the aroma of freshly ground coffee beans or order a pastry from Cafe Christl. It's only a brief stroll from Felsentherme Spa. In case you need something that's more nourishing, Restaurant Silberkrug (in der Felsentherme Gastein) is just a shout away. Anybody who likes an occasional drink can also pull up a bar stool at The Drop Inn, yet another brief walk away.
If you need a convenient way to visit Felsentherme Spa, all you have to do is get on the train to Bad Gastein Station, 0.1 miles (0.2 kilometers) away.