40 Mark Ln, London EC3R 7AT, UK
What we found
Third Space City is on the London map, but no traveller has confirmed yet whether it sells a day pass to visitors, or what it costs.
Third Space City on Mark Lane has a 25 m pool, sauna, steam room and cold plunge (Aug 2026). Memberships from £257 a month; nothing mentions a day pass.
From our research into public reviews and the gym’s own pages, Sept 2026. Visitor access still needs confirmation.
Does Third Space City sell day passes?
If you’ve trained here or asked at the desk, tell the next traveller. It takes a minute and earns 200 points on the community board.



