Lost Language

5.0 (70 reviews) RECOVERY COLD PLUNGE

📍 4510 N Ravenswood Ave, Chicago, IL 60640

Lost Language is a dedicated outdoor social sauna and cold plunge studio in Chicago offering thermal recovery through communal bathing experiences. Online booking.

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per session
1
modality
5.0★
70 reviews
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luxuryboutiquecommunity

Services

ServiceDurationPrice
Cold Pools
Electric Sauna
Wood-Fired Sauna

Lost Language is a beautifully designed urban sauna and cold plunge studio with exceptionally friendly staff and a strong sense of community. Reviewers consistently praise the welcoming atmosphere,...

Based on 70 Google reviews

Location

About This Studio

Lost Language is a dedicated outdoor social sauna and cold plunge studio in Chicago offering thermal recovery through communal bathing experiences. The studio operates two saunas (electric and wood-fired) and two cold pools, emphasizing connection and routine over solitary wellness. Appointments are required to book sessions. The studio distinguishes itself as a community-focused thermal practice rather than a traditional recovery spa.

Best For
first-timersdrop-in-friendly
What Sets Them Apart
  • Outdoor communal sauna and cold plunge space in Chicago, designed specifically for social connection rather than private recovery
  • Wood-fired and electric sauna combination with coordinated cold water therapy through dedicated pools and showers
  • Founded by community-focused entrepreneurs with documented track record in Lake Michigan cold water immersion and fitness community building
  • Limited operating hours (Thursday-Sunday only) create intentional 'slow time' positioning rather than 24/7 access model
Service Details
Electric Sauna
Outdoor electric sauna available Thursday through Sunday, accommodates approximately 15 people. Sessions involve alternating rounds of hot sauna, cold plunge, and rest in a communal social setting.
Wood-Fired Sauna
Outdoor wood-fired sauna heated Friday through Sunday. Currently out of commission as of the latest website update, but listed as part of regular weekend offerings when operational.
Cold Pools
Two outdoor cold pools, each accommodating 3-4 people. Used in alternating thermal rounds with sauna sessions. Two outdoor showers also available for cooling down between rounds.
What Reviewers Say

Lost Language is a beautifully designed urban sauna and cold plunge studio with exceptionally friendly staff and a strong sense of community. Reviewers consistently praise the welcoming atmosphere, spacious facilities, thoughtful design, and accessibility for both experienced and first-time sauna users.

Based on 70 Google reviews

Cleanliness & Hygiene

+
clean facility'Clean and properly maintained'
2x

Staff

+
friendly and welcoming staff'staff are friendly and welcoming'
5x
+
helpful and knowledgeable'staff is always friendly and helpful'
2x

Facility

+
beautiful and thoughtful design'beautifully built, wonderfully cared for'
4x
+
unique urban location/hidden gem'never think such place existed here'
2x
+
community hub atmosphere'small enough to give true community feel'
3x

Value

+
very affordable cold plunges compared to city

Standout Staff

Andrew and Sarah — owners praised for creating unique space

Most Mentioned

welcomingcommunitybeautifulcold plungerelaxingsaunafriendlyuniqueconnection
Facility & Amenities
Showers

Privacy & Setup

Cold PlungeShared Pool
CapacityElectric sauna: ~15 people; Wood-fired sauna: unspecified; Cold pools: 3-4 people each
NoteOutdoor social sauna space emphasizing shared, communal experience

Equipment Details

cold plunge
Type: shared_pool
Count: 2
sauna
Capacity: Electric: ~15 people; Wood-fired: unspecified
Count: 2
Your First Visit
  • 📖
    Orientation: First-timer orientation available
🌐
Online booking available
📅
Open weekends
🌅
Early morning hours
🌙
Late evening hours

Hours

MondayClosed
TuesdayClosed
WednesdayClosed
Thursday4–8 PM
Friday7–11 AM, 4–8 PM
Saturday8 AM–5 PM
Sunday8 AM–5 PM
The Team

Studio co-founded by Andrew and Sarah. Andrew co-founded Friday Morning Swim Club in 2021 and has experience with community cold water immersion. Sarah worked as a strength and conditioning coach and has background in dance and fitness communities.

Andrew Co-founder
Sarah Co-founder
Owner: Andrew and Sarah

Data last verified: 2026-03-16

Own this studio? Email jess.park@sweatlocal.net to update your listing