Korean saunas, at least in LA, are becoming popular with Americans.  And no wonder.  According to Dr. Grace Suh Coscia in the Huffington Post - Korean saunas will keep you lean, rejuenated and sexy.  But even the good doctor admits:

You may require several trips before you really start relaxing into a Korean Spa experience. Getting naked can initially be uncomfortable, but that’s what Korean spas are about. People here get naked and do their thing — it’s very natural.

Tell that to the American involved in the Busan spa incident.