PLUNJ Knoxville opens with sauna and cold plunge memberships

PLUNJ Knoxville is betting that cold plunge culture works best when it feels repeatable, not special-occasion. The new studio at 7240 Kingston Pike, Suite 140, offers drop-in sessions and memberships around a dry sauna kept at 175 to 190 degrees and a cold plunge held at 45 to 50 degrees, with room for up to four people.

The setup is built around a simple rotation. PLUNJ says most guests spend 10 to 15 minutes in the sauna, take a warm bucket shower rinse, then move into the plunge for 30 seconds to 5 minutes. The sauna runs on an electric stove, and guests can pour water on top to create steam. The space also includes a rest station with chairs and towels, reinforcing the studio’s focus on recovery sessions that can be repeated without much setup.

Memberships are a big part of the pitch. PLUNJ Knoxville lists introductory offers, punch passes and recurring plans, and a membership drive special runs through June 16, the same day the Farragut West Knox Chamber of Commerce is hosting a ribbon-cutting from 4 p.m. to 5 p.m. EDT. The timing signals a launch built to turn first-time visitors into regulars quickly, not just fill the room for an opening week rush.

The company’s broader story helps explain the format. PLUNJ founders Sean Foster and Lauren Foster say they discovered cold plunging while trail running in the Wasatch Mountains, and that the practice became a ritual that helped Sean with anxiety and panic attacks and Lauren with insomnia. That personal origin fits the Knoxville model, which is presented as a Nordic-style bathhouse and a simple communal space rather than a luxury spa built for a one-time splash.

Knoxville is also joining a growing regional contrast-therapy map. Sauna House says it is opening a Knoxville location, and Recalibrate Active Recovery Studio is already operating in Louisville, Tennessee, with sauna, cold plunge and Normatec compression. PLUNJ’s Knoxville presence, paired with Knoxville Hot Tub Rentals LLC’s filing on Feb. 20, 2023, shows a local wellness business moving from portable leisure into a dedicated recovery space.

For Knoxville, the value is practical: a fixed address, clear temperatures, defined session lengths and memberships that make cold therapy easier to keep doing. That is what turns a plunge from a novelty into a habit.