Almonte Spa
158 Almonte Blvd, Mill Valley, CA 94941
Marin County wellness sanctuary since 1978, nestled under redwoods near Muir Woods. Features private Finnish cedar sauna (190°F+) and infrared sauna. Outdoor hot tubs available separately ($35-55). Also offers massage services. Cold showers available for contrast therapy. 4.5 stars with 162 reviews. Voted Best in Marin.
Price: $35 for 30 minutes
Amenities: soaking tub
Hours: Daily 10am-9pm
Gender policy: Private booking
Clothing policy: Private rooms