To respond on the Munich situation, FKKfan wrote, i read that for about 5-10 years back some German boulevard/papparazzi magazines like bild published some articles about the Englisher Garten in Munich, besides that also the German tvsender/broadcast corporation "Vox" tv had a serie called "Wahre Liebe" were always a young attractive couple were testing 2 or 3 local nude beaches or nude lakes.
As a first result of this, less woman are going all nude and the second result is that in Munich one nudistlake/beach openend a special section only for woman. (if i lived in Munich i directly started to apply for a job as securitymember at that lake

)
About the German Sauna-scene an other tv station had a serie, as mentioned earlier.
In my country, the Netherlands, it will depending on the fact of the sauna/wellness center is small or big, is situated near or in a big city, is it good accessable, which day and time are you going? Is it nice wheater to lay outside in the sauna garden.
If you plan to visit a sauna in the Netherlands then may be you got to have a look at the dutch website "saunagids.nl", they have all information including a forum whith even more information, mainly in Dutch, but some also in English. One thing in generally i can say that i the Netherlands the ratio Men/ Younger Woman/ Elder Woman is always better during summer period even as in total less people visit the sauna. A lot of men only visit a sauna when it's very cold outside, but a lot o woman also visit a saunacenter in summerperiod because they also like to take a sunbed in the saunagarden.
In the rapidshare links section i will post a few examples about FKK (nudism) in Germany.