Swimming hall

I did not go to swimming hall in Spain so I did not know about the differences between Finnish and Spanish swimming halls before Spanish told me. In Spain all the swimmers have to wear a hat and everyone is also wearing flip flops to avoid foot fungus. In Finland anyone does not wear flip flops neither hat. They said that they were not allowed swim in a shorts and that there was not as strong smell of chlorine as in Spain. They did not understand why you have to be naked in sauna but the reason is that the chlorine vaporizes in hot and it is toxic.