In those Free States, the development of commerce, trade, and industry is actually quite good, and the atmosphere is far more open than that of Austria and Prussia. Especially in minor matters like public baths, they are far less strict than in London, and you should be able to find plenty of saunas there.
Moreover, since you are stationed in the Kingdom of Hanover as a second-class secretary, you don't have to worry about being criticized for enjoying a sauna because it's part of your job."
"Taking a sauna is part of my job?" Arthur frowned. "August, are you joking with me? I remember His Majesty the King assigning me the task of helping the Kingdom of Hanover pass a new liberal constitution, specifically to provide advice on police reform. Although I hold the position of second-class secretary, I'm practically doing the work of a police adviser."