Plunj Boise

Plunj Boise on W State St offers one-hour dry sauna and cold plunge sessions, a lounge, lockers, free on-site parking and women's sessions.

The sauna is the first thing worth describing at Plunj Boise: light wood on the walls and ceiling, benches stepping up along two sides, and the heater tucked into a dark stone alcove. It is a dry sauna on an electric stove, held between 175 and 190°F at around 20% humidity, and a ladle of water over the stones brings a burst of steam whenever the room wants one. Sauna, plunge, rest The plunge pool is slate-tiled with a stainless rim, steps down and a rinse shower beside it, kept between 45 and 50°F with room for four. A rest station with chairs and towels is right there, and a lounge with a sofa and reception desk is where the hour begins and ends.

Dry sauna: electric heat. Light-wood sauna with tiered benches along two walls and the heater set in a dark stone alcove. Listed amenities: Cold plunge, Lockers, Showers, Towel rental, Parking, App booking, Hosts events.

Listing type: Public bathhouse. Access: Reservation. Cold plunge: The cold plunge is kept between 45 and 50°F and fits up to four people at a time. Reserve a one-hour session on the Boise booking calendar or in the PLUNJ app. Memberships and private bookings are also available. SaunaShare records this listing as editorially reviewed by SaunaShare. A listing label describes where the information came from, not the quality of the sauna. Listing details were last reviewed on October 10, 2026.

SaunaShare does not process bookings. Confirm current hours with the operator, and book with them.

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