Sauna Jungle plans Nordic sauna and cold plunge spot in Arlington

Sauna Jungle has filed a building permit for 5210 Wilson Blvd. in Arlington’s Bluemont neighborhood, moving its Finnish-style sauna and cold plunge project toward a late 2026 or early 2027 opening. The company, formerly known as Arlington Sauna, is betting that a hot-cold ritual can work not as a novelty, but as a repeat-stop neighborhood amenity.

Co-founder Steven Hu said the plan calls for two saunas, one held at about 175 degrees and another between 185 and 200 degrees, plus three cold plunges set to 40, 50 and 60 degrees, along with cold bucket showers. Hu said, “It’s definitely a new concept, but Kira and I are excited to make progress and share this new cultural and wellness experience with everyone.” He has also described the interior as an indoor plant jungle, with forest-bathing cues and the hot sauna at the center of the design.

The address matters as much as the concept. The site is a merged retail bay that once housed a dry cleaner and an Arlington Soccer Association office, and Hu said the Bluemont Trail nearby should make the business easy to reach on foot or by bike. Sauna Jungle’s website is already advertising monthly subscriptions ranging from $99 to $130, a sign that the business is built around recurring visits rather than one-off drop-ins. Hu said more than 2,000 people have already joined the waitlist.

That is a sharp change from the version of the project floated in December 2025, when Steven and Kira Hu were scouting locations for Arlington Sauna, a roughly 1,000-square-foot outdoor pop-up village with wood fires and cold plunges in downtown Arlington. At that stage, the plan called for monthly memberships of $100 for a single and $200 for a family, plus day passes starting at $45, and Hu said the waitlist had topped 700 members. The move from pop-up village to fixed indoor site shows how quickly the concept has hardened into a permanent business.

The permit filing is still only a milestone, not a finish line. Arlington County says permits are required to make sure projects meet safety, health, zoning and environmental standards, and the cold side of Sauna Jungle’s plan sits in a range that health groups have flagged with caution. The American Heart Association has warned that evidence for cold-therapy benefits remains scant and that sudden immersion in water under 60 degrees can be dangerous, while Harvard Health has called the evidence shaky for people with cardiovascular disease. Even so, Sauna Jungle is moving ahead with a format that looks less like a one-off build and more like the kind of hot-cold facility Arlington may be asked to treat as regular infrastructure.