Start This Simple Side Hustle Before Everyone Else Does

31 Aug 2025 · 41 min
41:27

Chris Koerner profiles five mobile sauna and cold plunge operators making $10k–$50k monthly with 50% margins and payback under a year. The cold plunge market is projected to hit $500M by 2030, up from $318M two years ago. Most operators get 60–80% of leads from Facebook Marketplace and Ads, then scale through gym and Airbnb partnerships.

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