Banya 5

Banya 5 sits on 9th Ave N in South Lake Union, a few blocks from the lake and the biotech office towers that now surround it. It's a bathhouse built around hydrotherapy and sauna use rather than spa treatments in the massage-menu sense, drawing on old world wellness rituals for its format.

The facility is adults only, with a minimum age of 18, and clothing is optional inside. Walk-ins are welcome and a day pass is available, so there's no requirement to be staying at a hotel or booking a treatment package to get in. Hours run from 9am to 10pm most days, with a later 3pm start on Tuesdays, and the place is closed Mondays.

Parking is street or paid lot, which is typical for this part of Seattle given the density of office buildings nearby. There's no gender-specific scheduling here, meaning the hydrotherapy circuit and sauna areas operate on the same adults-only, clothing-optional basis throughout opening hours.

For anyone used to hotel spas built around single treatments, Banya 5 reads more like a communal bathhouse: you go to cycle through heat and water, not to book a 50-minute facial. Call ahead at (206) 262-1234 or check the website for current day-pass pricing and any treatment add-ons, since neither is listed here.