Cold plunges and saunas become key gym retention drivers

Cold plunges are no longer the extra that gets mentioned after the tour. In Blue Sky Fitness Supply’s June 28 guide, recovery is framed as core gym business, and the pitch is built on member behavior: 78% of gym members value access to recovery services more than lower membership fees, while 63% of millennials say they would pay more for a gym with wellness programming.

Recovery is becoming part of the membership equation

That shift makes sense against the bigger market backdrop Blue Sky Fitness Supply points to. The company says the global fitness recovery market reached $8.3 billion in 2025 and could climb to $26.8 billion by 2035, a scale that pushes plunges and sauna suites out of the “nice extra” category and into retention strategy. The U.S. Health & Fitness Association adds another piece of context: 81 million Americans belonged to a gym, studio, or other fitness facility in 2025, an all-time high that gives operators even more incentive to keep members inside the building longer.

The consumer-value question is not whether recovery is trendy. It is whether access to a cold tub, sauna, steam room, or whirlpool feels worth paying for in the first place. The best clubs are answering that by turning recovery into something members can actually use, not just admire on a tour.

The biggest operators are already building around it

Life Time has moved most visibly. On Jan. 31, 2025, the company said it would add cold plunges to more than 70 clubs nationwide by summer 2025, building on more than 20 existing cold plunges and its Rejuvenation Suites with saunas, steam rooms and whirlpools. That is not a small add-on; it is a chainwide bet that recovery can help hold members.

The company’s South Lamar club in Austin, Texas, opened on Dec. 31, 2025 inside The Bouldin development as a 57,000-square-foot facility anchored by a coed wet suite with a cold plunge and other recovery amenities. Life Time’s recovery director Danny King has positioned cold-water therapy as part of a larger destination where members can recharge body and mind, not as a stand-alone gimmick. That framing matters because it shows how premium clubs are selling recovery now: as a reason to stay, linger, and come back.

EōS Fitness has taken a similar approach with its in-ground cold plunge, describing the choice as driven by both functionality and design. That is a useful clue for everyday plungers: the most successful recovery spaces are not just stocked, they are planned.

What a real recovery zone has to get right

Blue Sky Fitness Supply breaks recovery planning into layout, flow, equipment selection, operating requirements, and revenue models, and that sequence is the right way to think about it. A cold plunge tucked in a corner does not compete with a full suite that moves people naturally from dry space to wet space, from heat to cold, and back again. Sauna sizing, traffic flow, and the surrounding experience matter because members notice friction the moment they have to dodge foot traffic, wait too long, or guess where to go next.

The practical test is simple:

• Can you move through the space without crossing awkward wet traffic?
• Is the cold plunge paired with enough sauna or steam capacity to avoid bottlenecks?
• Are sanitation routines visible and consistent?
• Is onboarding clear for first-timers who need temperature and time guidance?
• Does the room feel intentional enough to justify premium dues or a higher tier?

That is where shared recovery zones become a real on-ramp. A club-based suite lets you test whether you actually use cold exposure enough to justify a home tub, without dropping thousands of dollars before you know your own habits.

The science supports the ritual, but not as a cure-all

The evidence base is more encouraging than the hype, but it is not boundless. A 2025 American Academy of Family Physicians evidence review found that cold-water immersion immediately after exercise can improve perceived recovery and delay muscle soreness in the first 24 hours after high-intensity and resistance exercise. The clearest benefits showed up with short immersions, under 10 to 15 minutes, and water colder than 59°F, or 15°C.

At the same time, Harvard Health said in June 2025 that the evidence for broad cold-plunge benefits is limited and that the practice may be risky for people with underlying heart problems. The American Heart Association has also warned that sudden immersion in cold water can trigger dangerous cold shock. For operators, that means the premium amenity still needs the basics: staffing, signage, and a realistic approach to who should use it and how.

The market is growing because the use case is getting clearer

Supply-side forecasts back up the commercial push. Grand View Research estimated the cold plunge tub market at $354.6 million in 2025 and projected it would reach $659.9 million by 2033. Future Market Insights placed the category at $0.87 billion in 2025 and forecast growth to $1.92 billion by 2035. The forecasts differ in size, but both point in the same direction: more clubs, more home buyers, and more equipment makers are betting that recovery is no longer niche.

That is why the real question for members is not whether cold exposure is legitimate. It is whether the gym version offers enough access, cleanliness, instruction, and convenience to beat the cost of building your own setup. The clubs that win will not be the ones that simply install a tub. They will be the ones that make recovery feel like a destination worth returning to, every time you walk through the door.