Compared with the out & proud attitude in most of the gay or gay-friendly bars and clubs in Lisbon the saunas here seem to be relicts from a sad and closet time decades ago. You may find some action in Lisbon's saunas, but don't expect pleasant facilities or an exciting time.
Also, the saunas in Lisbon tend to be quite hidden. Usually there are no clear signs at the buildings – you need to know the exact street number to find the right bell to ring.
Calçada da Patriarcal 34
Largo Trindade Coelho 2
[Metro: Baixa-Chiado]
Rua do Telhal 4-B
[Metro: Avenida]