KOK Oslo Badstue, Aker Brygge

KOK Oslo Badstue at Aker Brygge sits on the pier at Stranden 32, facing Akershus Fortress across the water. It's a bathhouse built around heat and cold water rather than treatments: guests move between hot sauna rooms and the fjord itself.

Three main setups are on offer. The shared sauna holds up to seven people and works as a drop-in option for meeting other bathers. The private sauna is booked by the group - friends, colleagues or family - for exclusive use by the kai. For something different, there's the badstubåt, a sauna boat that takes a group out onto the Oslo fjord for a heated cruise, run year-round regardless of season.

Walk-ins are accepted, though reservations are the more reliable route given the setup runs on booked time slots. Couples treatments are available alongside the group and solo options, and staff work in both Norwegian and English. For regulars, KOK also runs a sauna club subscription starting from 150 kroner per person a month, plus gift cards and corporate packages for teams.

Opening hours run long: 07:00 to 20:45 on weekdays, with a slightly later 08:45 start on weekends. It's a straightforward setup - no pools or treatment menus, just sauna heat, cold fjord water, and a view of the fortress.