Tuli Lodge opens Seattle waterfront sauna and cold plunge pop-up

Tuli Lodge has opened a seasonal waterfront setup at Lake Union Piers that is built to feel more like a hangout than a recovery room. The pop-up runs from May 29 through August 31 at the north and west side of Building B, 901 Fairview Ave N, Building B Terrace, and it is positioned as a one-hour sauna-and-plunge session with fire, ice and room to linger afterward.

That is the main difference from a standard sauna studio. Tuli Lodge leans into what it calls “beer garden energy,” swapping brews for wood-fired saunas and cold plunges, then layering in lounge seating, firepits and conversation games so guests can stay social between rounds. The company says people can come sweat with friends, decompress after work or kick-start the day with a jolt of heat and cold. It is Tuli Lodge’s third pop-up in Seattle, a sign that the format is no longer just a novelty along the waterfront.

The location choice is part of the pitch. Lake Union Piers sits in South Lake Union, a high-footfall stretch where the company can test how well cold exposure works as a repeatable urban ritual rather than an athletic afterthought. The site is accessible by bike, bus, boat or streetcar, which makes it easier for office workers, neighbors and visitors to treat a sauna session like part of a regular summer routine instead of a destination spa visit. Tuli frames the price as roughly equal to two cocktails, another clue that it is chasing everyday use, not luxury-only traffic.

Founder Hannah Goldstein has said the concept was shaped by a 2023 trip to Norway, where sauna culture felt casual, friendly and woven into ordinary life. That Scandinavian influence shows up here in the rhythm of repeated rounds, moving from fire to ice and back again. Friends of Waterfront Park said Tuli’s earlier Pier 62 activation turned into a neighborhood gathering place and helped keep the waterfront buzzing in winter, which suggests the mix of heat, cold and social space has already found an audience in Seattle.

The wider cold-plunge trend has clearly moved beyond elite recovery circles and into the city’s social calendar, but the water still deserves respect. The CDC warns that cold-water immersion can cause immersion hypothermia, and that it can happen in water below 70 degrees. For anyone heading to Lake Union Piers this summer, that is the useful balance: a waterfront ritual that feels approachable, communal and easy to repeat, as long as the plunge stays measured and the fire has time to do its work.