Do I need to bring swimwear or towels for the onsen?

No swimwear is allowed (bathing is nude per Japanese tradition). The spa provides towels and a modesty towel for use in the bathing area, so you don’t need to bring your own.

Can children visit the onsen?

Children are permitted, but those under 10 years old must be closely supervised by an adult at all times. The environment is quiet and meant for relaxation, so it’s best suited for older kids who can follow the etiquette.

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Yunomori Onsen & Spa (Sukhumvit)

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Bangkok: Yunomori Onsen & Spa (Sukhumvit)

4.4(3953)

popular

3–4 hours

Sukhumvit, Bangkok

Operating Hours:Daily: 10:00 - 00:00

The Vibe:Zen-like oasis amid Bangkok’s bustle ♨️

In Bangkok’s buzz, a Japanese onsen spa offers a unique cultural crossroad. A Thai-Japanese fusion retreat blending the soothing traditions of both cultures, it provides a tranquil escape from the urban pace.
Eucalyptus steam drifts gently through quiet, wood-lined halls. Soft water ripples and hushed voices merge into a soothing soundtrack as warm mineral pools melt away tension.

Southeast Asia’s first authentic onsen spa
Ranked #1 Hot Springs Attraction in Thailand
Visitors praise its calming Japanese ambience and rejuvenating baths

Fit For

👨‍👩‍👧 Families: Unique bonding in safe pools (older kids supervised)
💕 Couples: Romantic relaxation in a serene setting
👵 Seniors: Gentle therapeutic soaks and restful lounges
🧖 Solo travelers: Peaceful "me time" soaking and unwinding

Highlights

Multiple Onsen Pools – Authentic hot spring baths with mineral-rich waters and varying temperatures
Traditional Thai Massage – Combine a post-soak massage for deeper muscle relief
Relaxation Amenities – Nap lounges, co-working spaces, and a cafe extend the unwinding experience
Carbonated Soda Bath — Unique bubbly onsen pool technology imported from Japan — Hidden Gem
Tom Yum & Coconut Bath – Occasional herbal-infused pools (like tom yum spices) offer a quirky, skin-nourishing soak
Nap & Lounge Zones – Peaceful areas to doze or work between baths, a surprising bonus inside the spa

Bangkok Local Expert

Tom Vater

Overview

Persona Fit

Highlights

Plan Your Visit (FAQ’s)

Know Your Facts

Food & Coffee Shops

Insider Tips

Photography Tips

Things To Do Nearby

Similar Options

Plan Your Visit

Getting There & Entrances

Amenities

• Nearest BTS: Phrom Phong (Sukhumvit Line); from there it’s about a 10-minute walk or short tuk-tuk ride down Sukhumvit Soi 26 to A-Square, where the spa is located.
• Look for the A-Square community mall complex on Soi 26 – Yunomori is inside, with clear signage at the entrance.
• If driving, parking is available in A-Square (enter from Sukhumvit 26); on weekends the lot can fill up, so plan accordingly.
• First visit tip: Upon entering the lobby, you’ll remove your shoes and get a locker key – the staff is very friendly and will guide you through the process.

Food & Coffee Shops

• On-site Cafe (Happy Rice): Enjoy a post-soak meal or refreshment here – they offer tasty Japanese set meals, Thai dishes, and even coffee and desserts in a tranquil setting.

• K Village (5-min walk): If you want to venture out, this nearby community mall on Sukhumvit 26 has trendy cafes and ice cream shops – a nice spot for a treat after your spa session.

• On-site Cafe (Happy Rice): Enjoy a post-soak meal or refreshment here – they offer tasty Japanese set meals, Thai dishes, and even coffee and desserts in a tranquil setting.

• K Village (5-min walk): If you want to venture out, this nearby community mall on Sukhumvit 26 has trendy cafes and ice cream shops – a nice spot for a treat after your spa session.

Insider Tips

• Weekday mornings are the quietest, allowing you to enjoy the pools with minimal crowds.

• Use the onsen pools before any massage treatments – the heat relaxes muscles and enhances the benefits of a subsequent Thai massage.

• A free tuk-tuk shuttle from BTS Phrom Phong to the spa (available on request) can save you a hot walk – just ask the spa or look for their sign at the station.

• Weekday mornings are the quietest, allowing you to enjoy the pools with minimal crowds.

• Use the onsen pools before any massage treatments – the heat relaxes muscles and enhances the benefits of a subsequent Thai massage.

• A free tuk-tuk shuttle from BTS Phrom Phong to the spa (available on request) can save you a hot walk – just ask the spa or look for their sign at the station.

Photography Tips

• No photography or phones in the bathing areas – a strict no-camera policy protects everyone’s privacy.

• Lock away your camera/phone in the provided locker; steam and splashes can damage electronics anyway.

• If you want a keepsake photo, take one in the lobby or cafe (where you’ll be in yukata robes) after your soak – cameras are not allowed past the locker room.