C4C — Club for Couples — is a swingers club on Makron Tichon in Piraeus, a short way from the SEF interchange. It presents itself as a night out built for the senses rather than a bar with a back room: a sound and lighting system meant to be felt, only premium spirits behind the bar, and what it calls exclusive privacy, away from prying eyes.

Its three words for itself are enjoyment, discretion and confidentiality, and it says its parties are made to be distinctive rather than ordinary — the gallery names themed nights including Eyes Wide Shut and Erodate evenings. Photography and filming are not allowed, and the club posts that in two languages on the wall.

It opens Wednesday and Thursday from 21:30 and Friday and Saturday from 23:00, closing in the small hours; Mondays and Tuesdays are closed, and whether it opens on a Sunday depends on the party schedule. Reservations go through the club's own number. Prices are not published.