Planned Facilities
Planned Facilities
89 Broadway, Fairfax
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Thermal Pools
A warm reflection pool for quiet soaking called the "Grotto" and a communal hot tub kept at 104°F
Steam & Wood Saunas
A wood sauna with heat generated from Finnish sauna stones in addition to a steam room
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Cold Plunge
Our cold plunge, kept between 45–55°F, features a cooling waterfall for a revitalizing immersion
Spa & Massage
Body treatments that restore balance and ease to accompany the baths.
A Warm Social Space
At the base of Mt. Tam inside an old bank building in downtown Fairfax Grotto is coming to life.
At its heart is the Grotto, a large warm reflection pool for quiet soaking and restoration. Nearby, a spacious hot tub invites conversation and relaxation, while the cold plunge offers a refreshing reset. Guests can move between a traditional wood sauna and a steam sauna, experiencing the benefits of both dry and wet heat.
Beyond the baths, Grotto will feature massage and spa treatment rooms for deeper renewal, as well as lounges and gathering areas where guests can unwind, connect, and spend time together. The communal bathhouse is designed to balance restoration and social connection — a place to soak, sweat, and belong.
