I was at Thermas in September ,actually on the day of the Catalan independence referendum. It was a bit quieter, late afternoon but enough cute guys. The average price was about 50euros.
Thanks for posting on other rent boy saunas i.e American Boys in Barcelona and Adnan in Madrid,also Miguel in Torremolinos.
I hope to visit on future trips....
Someone should make a list of all the saunas with rent boys in Europe. I feel more comfortable meeting escorts in the safe setting of saunas . I had a few offers on Grinder when in Barcelona ,but possibly because of my limited Spanish I did not feel comfortable in meeting them in my hotel or their homes.