Skip to content

Facilities

Ten rooms. One ticket.

Everything below is included with your ฿600 entry — no upsells, no timed slots, no surprises.

Hot onsen bath at Maxwell Onsen Bangkok with waterfall spout, stone walls and bonsai tree

41 °C · Kusatsu minerals

The Hot Bath

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

Main bath hall at Maxwell Onsen Bangkok with warm pools, waterfall spouts and projection screen

38 °C · the long soak

The Warm Bath

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

Cold plunge pool in the bath hall of Maxwell Onsen gay bathhouse Bangkok

19 °C · the reset

The Cold Plunge

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

Pine-clad sauna with tiered benches and wooden buckets at Maxwell Onsen Bangkok

Dry heat · citrus oil

Pine Sauna

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

Stone steam room with under-lit benches at Maxwell Onsen gay onsen Bangkok

Bergamot & lemongrass

Steam Room

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

Himalayan salt room with glowing salt lamps and loungers at Maxwell Onsen Bangkok

500 kg of pink salt

Himalayan Salt Room

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

Dim mindfulness lounge with recliners and stone walls at Maxwell Onsen Bangkok

932 Hz soundscapes

Mindfulness Room

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

Tatami dining room with sunken tables and rattan lantern at Maxwell Onsen Bangkok

Included with entry

The Restaurant

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

Private curtained relaxation rooms with terracotta feature wall at Maxwell Onsen Bangkok

Curtained · discreet

Private Rooms

A corridor of curtained private rooms — futon, fresh towel, warm light. What happens behind the curtain is your business.

Private cubicles · fresh linen · discreet

Rest lounge with screened day beds at Maxwell Onsen gay bathhouse Bangkok

Day beds · massage chairs

Rest Lounge

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

No booking. Just come.

The water is already warm.

173/3 Surawong Road, Silom · Entry ฿600 with a full Japanese meal included · Mon–Fri 2 PM–midnight, Sat–Sun 12 PM–midnight.