Mud bath’s are commonly from areas where hot spring water can combine with volcanic ash. Mud baths have existed for thousands of years and can be found now in high-end spas in many countries of the world.
Cartagena, Colombia
https://www.instagram.com/p/BQBuf2IB_SK/?utm_source=ig_embed&utm_campaign=embed_legacy
The Dead Sea, Israel, and Jordan
Calistoga, California
https://www.instagram.com/p/BH5zGR3gehi/?tagged=calistogamudbaths
Marmaris, Turkey
Hell’s Gate, New Zealand
https://www.instagram.com/p/BEaHq6KkkTe/?tagged=hellsgategeothermalpark