Thai tourists and recognized internationally. "Salt hot spring spa, Khlong Thom," which is a salted hot springs, the world's first 2 is the Czech Republic. Another is that, Krabi.
Thailand and international tourists unknown. "Thom salty hot springs spa", a salty hot springs of the 2nd World First is that the Czech Republic is another of Krabi.
Thai and foreign tourists "Hot Spring Spa Salt Khlong Thom" Which is the hot spring that 2 salt of the world The first is the Czech Republic, another is that Krabi