Facilities
Everything below is included with your ฿600 entry — no upsells, no timed slots, no surprises.
41 °C · Kusatsu minerals
Our hottest pool is dosed with powdered mineral content from Kusatsu, Japan's most celebrated hot-spring town, with citrus essential oil in the water. Sink to your shoulders, listen to the spout, let the day dissolve.
41 °C · mineral-enriched · citrus oil
38 °C · the long soak
38 degrees is the temperature of ease: warm enough to loosen every muscle, gentle enough to stay in for an hour. Epsom salts soften the water while you settle in under the projection wall.
38 °C · Epsom salts · under the cinema wall
19 °C · the reset
Nineteen degrees of clarity after the heat. Alternate hot and cold the Japanese way — three rounds — and walk out onto Surawong feeling brand-new.
19 °C · cold immersion · three rounds
Dry heat · citrus oil
A full-size Finnish-style sauna scented with citrus essential oil. Take the top bench if you dare, the low bench if you're staying a while — then straight to the cold plunge.
Dry sauna · tiered pine · essential-oil infusions
Bergamot & lemongrass
Our legendary steam room — the one our sister venue's herbal steam pays tribute to. Bergamot and lemongrass in dense clouds, stone benches lit from below, skin like new when you leave.
Steam · bergamot & lemongrass · heated stone
500 kg of pink salt
Over half a ton of Himalayan salt lines this warm, amber-lit room. Stretch out on a lounger, breathe slow, and let the glow set the pace.
500+ kg Himalayan salt · warm amber light · zero-gravity loungers
932 Hz soundscapes
A dim stone chamber of deep recliners and 932 Hz soundscapes. Ten minutes here between soaks and the noise of Bangkok is a rumour.
932 Hz audio · recliners · low light
Included with entry
Tatami seating, hanging lanterns, and a proper kitchen. Your ฿600 entry includes a full Japanese set meal with refills — karaage, curry, rice bowls — plus snacks and soft drinks all night.
Japanese kitchen · free with entry · refills included
Curtained · discreet
A corridor of curtained private rooms — futon, fresh towel, warm light. What happens behind the curtain is your business.
Private cubicles · fresh linen · discreet
Day beds · massage chairs
Screened day beds, massage chairs, Wi-Fi, and nobody hurrying you. Stay from open to midnight if you like — many do.
Day beds · massage chairs · high-speed Wi-Fi
See it before you come
Every room on this page is in the 360° virtual tour — drag to look around, tap the arrows to move between spaces. New to onsen? The first-visit guide puts these rooms in the order you'll actually use them, from the three baths to the included Japanese meal.
No booking. Just come.
173/3 Surawong Road, Silom · Entry ฿600 with a full Japanese meal included · Mon–Fri 2 PM–midnight, Sat–Sun 12 PM–midnight.
