For you Brazil guys here is good comparison that was on CRT:
Been to both FKK land and Termas land:
FKK's visited:
1. OASE
2. Palace
3. World
Termas' visited:
1. 4x4
2. L'uomo
3. Monte Carlo
4. Centaurus
Not a termas - Helpe Disco (not impressed)
My Impressions:
FKK better facilities. Great during the summer (World and Oase). Huge outdoor areas where they have little huts, swimming pool, lounge chairs and BBQ. Non pressure by the girls. Can phuck and get sucked anywhere, even on the lounge chair. Porno movie theaters where you can do everything in the open and private rooms nicer then Termas.
Termas are small and have no outdoor action. FKK's are cleaner. Locker facilities much better at FKK - There's nothing like showering and a naked girl walks by or changing into your towel and two naked women walk by.
Termas have more intensity. The minute you walk through the door into the bar area, you are greeted by beautiful dancing brazilian chicks who can move. They are wearing next to nothing.
When I walked into 4x4 at 3 pm and there were already 70 women wall to wall, I was pretty impressed. That place rocks of pure sexuality. They have a fire pole that the girls slide down to go from one floor to another.
Also, Centaurus, which I almost skipped was an unreal sensory experience. Wall to Wall of the hottest looking women (this was the highest class termas that I visited).
FKK girls are equally beautiful and I believe there is more variety in FKK land.
Termas girls are more aggressive then FKK girls. At times that can be annoying but at times that is great. Termas girls you can sit and talk with, DFK and not be committed to a session. FKK once tongues meet, it is assumed that the clock begins and you are committed.
FKK can be more of a laid back experience which I enjoy. You can phuck like a porn star and then take in the sun in the backyard and just chill. There is some room for that at Termas but no outdoor area and limited space. Once you go back to the main room the action begins again.
Safety - Rio is not a safe place. I've been to San Jose, the Dominican Republic and Medellin - never felt threatened at any of those places. Rio, I did not feel safe. Germany, is a safe place - I never felt threatened.
Termas are easier to get to once you finally get to Rio. Fkk's are out in the countryside (except for Palace) but once you know the terrain you can easily get anywhere by train and cab.
Right now my preference is for the FKK scene. I still have not gone to Goldentime, Bernds or PHG, which I heard are better then OASE, World and Palace. The thing I like about Germany is the safety of the country, the easier plane ride and the culture of Europe.
Don't get me wrong, both Rio and Germany, to me, are my favorite destinations.
Termas v. FKK is equivalent to Lexus v. Mercedes. Either one is a great ride