Kaikan Onsen

[Please don’t waste your time and money here] 1. The staff are extremely unfriendly and unwelcoming. 2. It was our first time here, yet no staffs explained the rules of the onsen. Some areas allows a small towel, while some do not allow. When we made a mistake that we do not know, the staff simply shouted at us and gave us nasty looks. 3. The crowd was very disappointing, mostly out of shape , and the onsen felt lifeless. 4. The facilities were not very clean. There was even moss growing in some areas, making the floor slippery. 5. THB450 entrance fee I would rather sit down somewhere else to get some beers. Cheers

THB 450 entrance fee. Visited 10/2025. I brought a translator and the staff were straightforward with simple questions. Treat the place like a Japanese-style onsen and you'll be fine. Shoes off, be free of modesty. Lockers are spacious, and even fit one of my suitcase bags. It uses a smartwatch so it's easy to not lose, just make sure your door is clicked closed before stepping away. Bring your big towel to shower and clean first. Then put it away and take a small towel with you to the baths -- though you don't wear it or keep it on you as you bathe. The main big baths are lukewarm and are spacious, but there is a enclosed hotter bath that is much more relaxing. There are also dry sauna rooms. If you are done bathing, there is also a lounging space you can access and a bar. There are a few spots you can chill and charge your electronics in the meantime. Next to the bar is upstairs, which is where gay men will likely have the most interest in. Lockable rooms or open-space rooms with light switches. There is also a balcony that looks over the baths with a large chair that fits a few men. At the time of my visit the 3rd floor was inaccessible and not much to do, but I had plenty of fun with others on the 2nd floor. If you like onsen-style bathing & lack shame about your body, for a cheap price this is a great place.

Very amazing place I felt the real peace But the staffs are very scary. They take off your phone and money while you’re at your sauna time. I will never recommend this place for any one Unsafe The car staff took my phone a left me panic for almost 40 mins. The reception staff don’t give a damn your panicking and plays video games with other staffs and didn’t give clientele service at all I was All lone and it was unsafe

This is the first and only bathhouse I visited in Bangkok. For me it is okay. My friends told me that if compared to other saunas, this one has fewer visitors. But if you want to relax and just a little fun, then this place is a good choice. I visited this already more than 10 times to relax and more.

Highly recommend! Staff are very welcoming and the vibe is for all ages. The onsen itself was beautiful, with many pools to choose from and cool scenery surrounding. Worth the money, and was impressed as I went on a Thursday night. Will be coming back again. If your foreigner visiting or living in Thailand, go check it out