Let's Relax Onsen at Thonglor in Bangkok

4.8 / 5
2.1K reviews
30K+ booked
Let’s Relax Onsen and Spa Thonglor
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📣 Onsen area at Bangkok Thonglor Onsen & Spa will undergo scheduled maintenance from July 1–15, 2026. Please Note: All spa treatments and massage rooms will remain open during their regular hours. Thank you for your understanding.
  • Pamper and indulge your mind and body with an onsen experience in Bangkok featuring wide varieties of mineral bathtubs, sauna, steam, hot stone bed baths and massages
  • Don't miss out on a Lemon Infused Onsen, packed with Vitamin C and boosts collagen production
  • A multi-awarded spa with 15 years of experience and excellent service at a great price

Package options

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Package type

Blooming Life [180 Minutes]

Open date: Valid for 180 days

Aroma Oil Massage [60 Minutes]

Open date: Valid for 180 days

Heavenly Relax Package [165 Minutes]

Open date: Valid for 180 days

Four-Hands Thai Massage [60/120 Minutes]

Open date: Valid for 180 days

Golfers Heaven [135 Minutes]

Open date: Valid for 180 days

Dream Package [90 Minutes]

Open date: Valid for 180 days

Body & Soul [120 Minutes]

Open date: Valid for 180 days

Thai Massage [120 Minutes]

Open date: Valid for 180 days
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Quantity

kr 240

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What to expect

Experience a genuine Japanese sanctuary in the heart of Bangkok. Let’s Relax Onsen and Spa combines 15 years of expertise with world-class service to nourish your mind and body at an affordable price.

Indulge in unlimited time at our authentic Japanese onsen, or pair your soak with a revitalizing one-hour facial or a skin-soothing body scrub. Our iconic aromatherapy massages are the perfect way to melt away stress and revitalize your skin. Escape the city's hustle and enter an idyllic hot spring paradise designed for total relaxation.

Let's Relax Onsen at Thonglor in Bangkok
Let's Relax Onsen at Thonglor in Bangkok
Let's Relax Onsen at Thonglor in Bangkok
Let's Relax Onsen at Thonglor in Bangkok
Let's Relax Onsen at Thonglor in Bangkok
Let's Relax Onsen at Thonglor in Bangkok
Let's Relax Onsen at Thonglor in Bangkok
Let's Relax Onsen at Thonglor in Bangkok
Let's Relax Onsen at Thonglor in Bangkok
Let's Relax Onsen at Thonglor in Bangkok
Let's Relax Onsen at Thonglor in Bangkok
Let's Relax Onsen at Thonglor in Bangkok

Location

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Reviews

4.8 / 5
Fantastic
2.1K reviews
Therapist
4.7
Atmosphere
4.8
Value for money
4.7
Accessibility
4.6
Reviews summary
From real reviews, powered by AI
Overall impression
Customers consistently praise the professional services, serene atmosphere, and excellent value. The onsen experience, coupled with skilled therapists, offers a deeply relaxing and refreshing retreat, making it a highly recommended destination.
Therapist
Skilled, professional, and attentive therapists offer effective massage techniques with appropriate pressure, ensuring a relaxing and rejuvenating experience.
Atmosphere
Clean, comfortable, and tranquil environment with a relaxing ambiance, beautiful Japanese-style design, and well-maintained facilities including various onsen pools.
Value for money
Excellent value for the price, with a wide range of facilities including diverse onsen pools, saunas, and professional massage services, often including complimentary refreshments.
Accessibility
Conveniently located within a hotel, with easy access via shuttle services from the BTS station, providing good connectivity despite some walking distance.
Traveler reviews
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Review for: Onsen Day Pass

Relaxing experience. You should try this when you are in Bangkok. Facilities are well kept and maintained. I love the modern-tradtional vibe of the place. Get some of the complimentary pandan juice and coconut rolls. they are just as good.

Helpful
Review for: Onsen Day Pass

one of the best experiences you can book when in Bangkok. The facilities are clean and well maintained. Free flowing refreshments in the place. I especially love their pandan juice and coconut rolls. Relaxing experience indeed.

Helpful
Review for: Onsen + 120-Minutes Thai Massage

Let’s relax massage has never disappointment me but this time round the masseur actually doze off while massaging me. so it’s actually dependent on the masssur themself but overall it was a great and relaxing time spent. cheaper when you get this over klook but do remember to make a booking before you head down.

Helpful
Review for: Onsen + 60-Minutes Thai Massage

Thai massage is an ancient healing modality that combines pressure, stretching and acupressure to promote relaxation and balance in the body. I recently had a Thai massage and here are my thoughts. First, the Thai masseuse will use aromatic essential oils to make the atmosphere more relaxing and prepare the environment for comfort. Next, the masseuse will use their hands, elbows, knees and feet to massage, applying varying amounts of pressure and stretch to each part of the body. This unique technique made me feel that my muscles throughout my body were completely relaxed and my body became more flexible. During the massage, I can feel the effect of acupoint massage, which helps promote the flow of energy and improves the body's immunity and self-healing capabilities. Thai massage can also help improve blood circulation, reduce fatigue and stress, and make me feel energetic and happy. After the massage, I felt completely relaxed and balanced, as if I had regained my energy. This Thai massage gave me a profound appreciation of the connection between body and soul and inspired me to care about health and body care on a deeper level. Overall, Thai massage is a very pleasant and effective treatment that I would recommend to anyone looking to relax, unwind, and improve their health. This experience gave me a deeper understanding of Thai massage and I look forward to experiencing this wonderful treatment again in the future.

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Helpful
Review for: Onsen + 120-Minutes Thai Massage

Let’s Relax onsen provided a serene and relaxing atmosphere, with some example of different pool sequence to achieve different wellness purpose. The 120-min Thai massage was expertly executed, relieving tension and promoting deep stretch! My therapist was Mongkhon, his skillful hands and legs as well as attentive approach tailored to my specific needs, leaving me feeling rejuvenated. There’s a shuttle tuktuk between Thong Lo BTS and Grand Centre Point, running every 20 mins. Overall, it was a delightful experience that I would highly recommend to anyone seeking relaxation and wellness!

Helpful
Review for: Onsen Day Pass

Interesting experience as a first timer, inside grande hotel, clean facilities . Nude in onsen , gender based , given a small towel, no one cares really . Relating , signs everywhere . Relaxation room was nice and cool drinks around . Must try !

Helpful
Review for: Onsen + 60-Minutes Aromatherapy Oil Massage

A relaxing spa & onsen located within Grande Centre Point, there are so many onsen pools / sauna / steam bath to enjoy, that we felt that we should have allocated half a day there! Massage was on point, and rooms were comfortable (the place seems quite big). Appreciate the mango sticky rice after our massage, & the snacks / drinks at the lobby. A word of advice if you’re opting for onsen + aromatherapy massage: cater at least 1 hour before your massage, as you can’t re-enter the pools after the oil massage, though the hot stonebed bath is still accessible.

Helpful
Review for: Onsen + 120-Minutes Thai Massage

What a great experience! Generally, it is difficult to fall asleep during a Thai massage. But after pressing it for two hours at a time, all four people fell asleep! Very comfortable environment! It's very relaxing and it's a separate room massage. You can choose to go to the hot spring before or after the massage. No matter what time period you choose, be sure to reserve more than thirty minutes! Because there are many hot spring pools and steam rooms, only twenty minutes are not enough! The hot spring circulation is well planned, and there is tea available for drinking outside. You don't need to go to the lobby to drink tea. In addition, free cookies and tea are provided in the lobby. At the end of the massage, there will also be mango sticky rice and hot tea. delicious! ! An itinerary that I would like to experience again!

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Helpful
Review for: Onsen + 60-Minutes Aromatherapy Oil Massage

Great and relaxing experience! Never thought that i can do onsen outside of Japan. Hot spring waters are imported from Gero Japan. This onsen spa is located at the 5th floor of Grande Center Point Sukhumvit 55 hotel. Can catch the hotel’s tuktuk based on their shuttle timetable provided. I booked my massage reservation via email (at least a day in advance) and went 2.5hrs earlier of my reservation to enjoy the onsen. Onsen can be done and after you do thai massage. If you do aromatic oil massage, you can only do onsen before the massage. This spa is unique in that, it reminds me of Japanese Onsen, Korean Jimjimbang (hotstone bed and cooling down room) and has spa facilities as well. Ends off with mango sticky rice and a cup of tea. I reached at 430pm and left at 9pm, completely ready to sleep after a whole afternoon/night of relaxation. The aromatic massage was so good, and i added on 30mins shoulder and back massage at the spa itself. My masseur was so good and applied the right pressure and on point with the tight muscles and sore spots!

Helpful
Review for: Onsen + 60-Minutes Thai Massage

Overall, it was a really relaxing and enjoyable experience that everyone should be able to do while in Bangkok. The staff were so friendly and assisted me throughout the activity. The facilities were clean and pleasing to the eyes. Lastly, their free mango sticky rice was so tasty and added to the awesome spa experience.

Helpful

FAQs

If I purchase multiple tickets in a single order, can I use the tickets separately?

No. Tickets purchased in the same order will be contained in a single Klook Voucher and QR code, and must be redeemed together. You cannot redeem tickets purchased in a single order separately. If you wish to participate in this activity multiple times, you can make multiple bookings for this activity.

Can I cancel & refund my booking?

Yes. You can request to cancel & refund your booking at any time before your voucher is used.

For more information on how to request a refund, please refer to this article!

Can I amend my booking details?

This activity offers free cancellation at any time before your voucher is used. As such, you can simply cancel & refund your booking, and make another booking with the correct details.

For more information on how to request a refund, please refer to this article!

Can I amend my activity date?

As this is an open-dated voucher you do not need to amend your participation date. You may use your voucher to participate in your activity at any date within your voucher validity period. Your voucher validity is stated in the "How to Use > Usage Validity" section of your voucher.

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