Sauna Moon (Alki Beach)
Sauna and cold plunge in Alki Beach.
Alki Beach wood-fired barrel sauna with published $35 / $20 drop-ins and a $100/mo unlimited when you want a Thursday through Saturday open-water Sound ritual.
No verified studio photos yet
Check the official website for photos and a closer look at the space.
Quick answer
Is Sauna Moon (Alki Beach) good for beach sauna and open-water cold plunge in Seattle?
Yes. Sauna Moon (Alki Beach) is a communal contrast studio in Alki Beach with wood-fired cedar barrel sauna and open-water cold plunge. Hours are not currently published, so check the official site for current times. Drop-ins are $35. Best when you want a Thursday through Saturday open-water Sound ritual.
About this studio
Sauna Moon parks a mobile wood-fired cedar barrel on Alki Beach Park in West Seattle. Heat is communal (about 12 to 14 seats). Cold is open-water plunges in Puget Sound, not a filtered tub. The operator runs Thursday, Friday, and Saturday sessions; your booking confirmation names which of two Alki permit pins to use.
Published Pricing on our 2026-09-21 check: $35 for 60 minutes, $20 for 30 minutes, and $100/mo unlimited. Book on Acuity or call (425) 370-8797. Bring a sit towel. Compare Bywater if you want multi-site Alki / Golden Gardens class bookings, or Good Day for Lincoln Park weekend pop-ups.
- Mobile wood-fired cedar barrel on Alki Beach Park waterfront
- Open-water Puget Sound cold between heat rounds (not a plunge tub)
- Communal seating for about 12 to 14 people
- Thursday through Saturday schedule with two rotating Alki permit pins
Available options
See all →- From $35
60-min session
Confirm details on the official site
- From $20
30-min session
Confirm details on the official site
- From $100/mo
Unlimited monthly
Membership options on the official site
Amenities
Amenities not yet fully verified
Specific amenities (towels, showers, lockers, and similar) have not been confirmed yet. Check the studio website for details.
Location
Map unavailable without a verified pin.
Common questions
Is the cold side a plunge tub?
No. Sauna Moon uses open-water plunges in Puget Sound at Alki Beach Park. Know the site rules and your limits before you book.
How much is Sauna Moon?
Published Pricing on our last check: $35 for 60 minutes, $20 for 30 minutes, and $100/mo unlimited. Confirm live rates on Acuity before you book.
What days does Sauna Moon run?
The operator hero lists Thursday, Friday, and Saturday. Exact session times and which of two Alki permit pins apply live on the booking calendar, so confirm there or call (425) 370-8797.
Sauna Moon or Bywater for Alki?
Both are wood-fired beach barrels with open-water Sound cold on Alki. Pick Sauna Moon when you want published $35 / $20 drop-ins, a $100/mo unlimited, and a Thursday through Saturday Alki-focused calendar. Pick Bywater when you want multi-site Alki / Golden Gardens (plus seasonal Ballard) class bookings on Glofox.
Is Sauna Moon on ClassPass?
Not on our last check. Book on hotrockssaunaclub.com / Acuity or call (425) 370-8797.
Thinking about home?
Unlimited here is about $100 a month, or about $1,200 a year. A hard-shell plunge with a chiller runs about $4,990 to $7,990, so daily use pays it back in roughly 4.2 to 6.7 years. Plunge less than a few times a week and the membership usually wins. Compare home cold plunges or home saunas. See national payback math, or start with Plunge vs Ice Barrel and home sauna vs cold plunge.
Keep comparing
Doing this at home instead? We compare home cold plunges and home saunas on published prices, with the dates we checked them.
More studios in Seattle
See all Seattle studios →Sources Corrections Last checked 2026-09-21
From $20
on official site