Mistik Sauna Club

Mistik Sauna Club is in Campanhã, Porto, near the station, and describes itself as a mixed, liberal, naturist and swinger spa, adults only, where stress stays at the door. On arrival the reception team explains the facilities, services and rules, and gives a short guided tour of the areas and social spaces.

Open every day. Exact address, hours, prices and couples' or singles' days to be confirmed; the website has contacts.