I haven't been there, so I don't know the answer to your question. However, I did spend a few minutes on Google Search and find multiple references to a gay Thermas Jardins, Rua Germânia, 221 - Bonfim, Campinas - SP, 13070-770, Brazil. There may have been confusion over the name because it is situated on Rua Germânia.
There's an inactive facebook page (including an e-mail contact address): Thermas Jardins | Campinas SP | Facebook I don't see mention of GP, however.
Edit: When I use Google Maps street view for the address I mention above, it's a vacant lot.