OUTDOORACTIVE : TAPOLCA CAVERN LAKE VISITOR INFO
Photo by Shaambo ghosh - Wikipedia
One of the interesting aspects of this cave is that it is used for AIR THERAPY...
Excerpt: The special warm and humid conditions in the cave, and the typical factors of speleotherapy (Clean air and high carbon dioxide content) make this cave very beneficial for people with asthmatic and respiratory diseases. It is used for speleotherapy by various nearby baths. Inside the cave it is possible to swim through several passages, which are partly natural, partly artificial tunnels. There are small pools and jakuzzis, and a large outdoor pool.
More here:
https://www.i-s-c-a.org/show-cave/148-lake-cave-of-tapolca
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