🇺🇸 USA · San Francisco, California
♨ Temperature
40°C
⛰ Altitude
15 m
⚗ pH
—
💧 TDS
—
🌊 Flow rate
—
📅 Established
—
✓ Verified on 2026-07-24
Onsen SF brings the principles of Japanese onsen bathing culture to the Mission District of San Francisco in a sleek urban setting. The facility offers private soaking rooms with mineral-enhanced baths heated to around 40°C, alongside cold plunge pools, eucalyptus steam rooms, and a sauna. The design philosophy draws from traditional Japanese bathhouse aesthetics while addressing the needs of a contemporary urban clientele seeking restorative water experiences without leaving the city.