Portland and the Willamette Valley carry most of Oregon's sauna and bathhouse capacity, and the clothing rule is per venue and often per session. The list below says which ones somebody has actually confirmed.
Just passing through Oregon? Saunas are the easiest thing on this map to fold into a trip — most are drop-in venues in town. Check the venue's current schedule and clothing policy before you go; both change more often than anything else here.
These are private venues, and each one sets its own rule: some are textile, some are nude, plenty are nude on some sessions and not others, and a few are single-sex on particular days. A state's public-exposure law governs public places; it does not decide what happens inside someone's building.
Check the venue before you go, every time. Policies here change more often than anything else on this map, and a schedule change or new ownership can flip a session overnight. Where we know the current rule it is on the spot's own page, with the date somebody last confirmed it.
Nanitch is a map, not a law firm, and none of this is legal advice. Rules change and enforcement is local, so if it matters, check with the agency that manages the land before you go.
Confirmed or written up (7)
These have a page here because somebody has been to them: curated by Nanitch, confirmed by a member, or written up with real access notes.
Clothing-optional soaking pool, saunas, hot tub. Paid admission.
Knot SpringsWellness facility · Central Eastside, Portland · Year-round
Design-forward urban soaking club: hot/cold plunge pools, sauna, and steam with a downtown view. Swimsuits required. Day passes (reserve ahead) or membership.
Private by-the-hour outdoor hot tub + sauna rooms near the UO campus. You get your own enclosed room — clothing-optional since it's private. Book by the hour; reserve ahead, especi…
13140 SE 172nd Ave, Suite 130, Happy Valley, OR 97086. Phone 503-855-4695. A Restore Hyper Wellness studio offering infrared sauna, cryotherapy, red light therapy, compression, IV …
Nordic sauna + cold-plunge contrast in Milwaukie, just south of Portland. Drop-in ~$19 weekday mornings, ~$29 other times. Swimsuit/private. Women-owned.
4055 Mercantile Dr, Suite 170, Lake Oswego, OR 97035. Phone 503-210-1274. Private infrared sauna and cold plunge suites. Sessions are 60 minutes of contrast therapy alternating bet…
Also on the map (2)
Named saunas imported from OpenStreetMap that nobody has confirmed yet. They are on the map and in the app, and they get a page here the moment someone reports back from one, not before. Listing every one of them: