
Let's Relax Onsen & Spa Thonglor
Thailand's No.1 boutique day spa with authentic Japanese onsen
Editor’s Take
Best value onsen experience in Bangkok — way cheaper than Yunomori or PANPURI but still legit. The mango sticky rice is a genius move. The Thonglor location has the biggest onsen; other branches are spa-only. Reasonably priced by local standards. Good value for regular visits.
About
One of Thailand's largest spa chains with over 60 locations, the Thonglor branch uniquely combines authentic Japanese onsen bathing with traditional Thai massage across 1,800+ square meters. Located on the 5th floor of Grande Centre Point Hotel, it features temperature-controlled pools, sauna, and steam rooms alongside a full spa menu. The complimentary mango sticky rice after your treatment is a beloved signature touch.
Treatments & Services
Signature: Onsen + Thai Massage Combo (Japanese bathing + traditional Thai healing)
Highlights
- ✓Authentic Japanese onsen with multiple pools, sauna, and steam room
- ✓Over 1,800 sqm of wellness space
- ✓Complimentary mango sticky rice after treatments
- ✓Part of Thailand's No.1 spa chain with 60+ locations
- ✓Near BTS Thong Lo (Exit 3)
Best For
Budget-conscious travelers wanting a Japanese-Thai hybrid wellness experience with onsen and massage
Contact & Info
Address
5th Floor, Grande Centre Point Hotel Sukhumvit 55, 300 Sukhumvit Soi 55, Khlong Tan Nuea, Watthana, Bangkok 10110
Open in Google Maps →Phone
+66 64 301 6461Hours
Daily 10:00-00:00
Languages
English, Thai, Japanese
Similar Venues

Divana Divine Spa
Located in Thonglor / Ekkamai, Bangkok. Hidden beneath a canopy of grand trees, Divana Divine Spa occupies a graceful heritage residence in Thonglor. Blends traditional Thai and aromatherapy techniques into signature wellness rituals.
Book now →
Totonoi Sauna & Onsen
Authentic Japanese sauna culture brought to Bangkok by Japan's leading sauna event organizers. Purpose-built facility in Thonglor with public zones, private VIP onsens, and an on-site restaurant.
Book now →
Oasis Spa Sukhumvit 31
Set in a tranquil compound along Sukhumvit 31, Oasis Spa offers extensive massage and spa treatments in a Lanna-inspired Thai setting with late-night hours until midnight.
Book now →
Health Land Spa & Massage (Asoke)
A beloved Bangkok institution with multiple branches. The Asoke flagship offers professional Thai massage and spa treatments at remarkably affordable prices near Terminal 21.
Book now →