Let's Relax Onsen & Spa Thonglor
Thailand's No.1 boutique day spa with authentic Japanese onsen
Treatments & Services
Signature: Onsen + Thai Massage Combo (Japanese bathing + traditional Thai healing)
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.
— Max & Tatiana Palmer
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.
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
What search says
Ranks for 1,331 local searches, top‑10 for 147 — strong local footprint
Own or manage Let's Relax Onsen & Spa Thonglor? Claim this listing
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 →