Utopia Club is an exclusive swingers club on Urwisko in Warsaw, and describes itself as new to the city — a space for people who want to explore their boldest fantasies with discretion, safety and elegance, and a community as much as a club.

It runs dated, bookable events rather than keeping standing opening hours, so check the programme and reserve a place.

Two house rules are worth knowing before you go. Mobile phones may not be brought into events at all — leave them at home or in the cloakroom, from which you can make a call if you need to. And the dress code works by floor: on level 0 you may stay clothed all night, elegant, smart casual or erotic, while levels 1 and 2 require erotic dress or underwear and you cannot enter them clothed. Some events set a specific costume, which the club states in the event description. Everything except the entry ticket is settled on the way out.