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- なおと
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05:24 January 17, 2026
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I went on the day they had the Wet'n Wild Party event. This place was way more erotic than I expected! For a guy like me who doesn't have a butt (they call it "side" in English), it was a super fun spot. By the time the event started, about 30 people had gathered in the bathing area. An event boy who apparently models normally came in, and the steam sauna was packed like a crowded train. The model guy left the steam room after about five minutes, but even after that, the sauna was filled with kissing, mutual masturbation, and sucking each other off. The squelching sounds were so erotic! After that, I left the sauna and was resting on a nearby chair when the model guy came and sat next to me! I got to thoroughly touch his rock-hard six-pack, massive pecs, huge glutes, and rock-hard cock. Every time the model guy entered the sauna after that, things got heated up again. The clientele was mostly Thai locals, with many slim-muscled to slightly macho guys – totally my type. When the event ended after about two hours and the crowd thinned out, I wandered around the 4th floor or did some light flirting in private rooms. I ended up lying down in a private room and fell asleep, waking up around 11:30 PM.
The AC had chilled me, so I headed to the bath floor to warm up before leaving. I thought it'd be empty, but surprisingly, about 10 people were there. Huh? Were they all in their 20s? Was I the only guy in his 30s? But Thai guys are nice—they let me join their group in the sauna lol. The next hour was super hot again! I ended up getting 7-8 cocks that day, including the model's. Thanks for the feast!
Maybe it's best to go on event days? Also, the lockers are small, so pack light. The provided robes were fine (didn't smell).
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- 黒龍
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00:31 August 11, 2025
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I went there expecting to meet local Thai people and good looking guys, but my dreams were crushed! The clientele was gaijinized, fat and aging, and the Chinese language was too loud, so we left after about 30 minutes.
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- 佐助
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14:00 July 31, 2025
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The place is cleaner than expected.
We sucked each other off in the steam room on the first floor and played with a slim, handsome guy in a private room on the fourth floor.
At 199 baht, it is considerably cheaper than Maxwell's.
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- 21jul25
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00:20 July 22, 2025

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After arriving at Don Mueang airport a little after 4pm, we went straight there with SRT and GrabWin. The receptionist at Kaihatsu Spa is a woman (may include Kathooi) and the entrance fee is 199THB, early bird discount before 6pm. I gave her my phone number and made a bank transfer. Communication in the building was bad and Wi-Fi was instantaneous. This is the third time, it used to be good, but the weekday crowd and facilities are noticeably dissatisfied. The jinbei (a type of beach suit) smelled of sweat and grease due to lack of laundering. The café was uncomfortable due to the blaring KPOP music, and the background music in the hot spring was loud. 3rd floor massage machines were for small people and could not reach the legs and neck. 4th floor rooftop annex and curtain passage were open, but no shower was inconvenient. 1st floor Goemon bath was good to relieve travel fatigue, but there was no water bath or dry sauna. Today, I had a shower with a dark-skinned girl in the vanilla room, and he was the only one who got laid. A kiss between a Taiwanese gymnast and a young Thai man was tonight's side dish. Compared to the Ryu hot springs, the number of visitors is smaller, and the cramped lockers and filthy kimbei are unpopular. There is a reason for the decline in popularity.
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- くちゅみ
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22:46 April 13, 2025

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Take exit No. 4 of Ratchayothin station, walk straight and you will find it right on your left hand side.
We entered the restaurant at 7pm on a Sunday during Songkran, and there were 30-40 people in the restaurant. The price was 450 baht.
On the first floor is the reception desk, where first-time visitors fill in their name, phone number, and nationality. After paying, you receive a locker wristband and a bag, put your shoes in the locker and go to the second floor. The bag contains a bath towel, hand towel, jinbei, and obi. You can put your shoes in the locker regardless of the number.
On the second floor, there are changing rooms and a make-up table with a hair dryer; on the second floor, there are stairs going up to the third floor and another set of stairs going down, separate from the stairs coming up from the reception desk. There is a hot spring downstairs.
The hot spring has two goemon baths, a steam sauna, and a bathtub.
The development is in the steam sauna, but there are less than 20 people and the door is not closed.
Most of them were cute Thai people in their 20s-30s, slim to normal build. Almost no one was over chubby, and even if there were, they were not selling.
3rd floor: lounge (drinks around 70-100 baht) and restrooms, wifi, only one power cord
4th floor: indoor development space, massage chairs
5th floor: outdoor development space, cooler development space in a separate area
Overall, I liked the cleanliness of the place. If you want to do young Thai, I highly recommend it!
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- 9jan25
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14:54 January 24, 2025

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When it was still light outside.
Straight from the hotel on a GrabWin motorcycle
They were running a promo for Thursday early bird discount of 199 Baht for January only if you get in before 6pm.
I paid 199 baht by bank transfer and got a black rubber band key.
Bath towel, hand towel, jinbei and obi in a black mesh bag
I had been here once when it first opened (2022),
that time, they lent me a pair of black rubber slippers, and then
This time, I put my shoes in the shoe box behind the reception desk on the first floor
and go up to the second floor.
The disadvantage of this place is that the lockers in the locker room are very small
The lockers in the locker room are very small and the locker room is very small.
And this time, my jinbei was freshly dried and smelled really bad!
Maybe they haven't been washed?
From the second floor where the changing rooms are located
In the Onsen area, there are two mini Goemon baths,
steam sauna,
bathtubs.
First of all, I soaked myself in the Goemon Bath with my feet out.
and soak away the fatigue of the day.
I can see the guests checking in one after another
I can see the guests coming into the steam sauna and the bathtub with my eyes closed.
It's time to develop
I walked into a group of people gathered in the bathtub, facing each other at an unusually close distance
I joined the group that was holding a silent conference.
I gently grasped the one next to me,
He grabs mine back.
Enjoying the quiet development
I climb out of the Onsen
Wandering upstairs
The third floor is a cafe area and rest area (dimly lit, music blaring, toilets that stink)
Through the café to the 4th floor: rest/development area, massage chairs, private rooms with locks, and a maze
On the rooftop of the 5th floor, there is a development corridor with an open curtain.
And then there is a detached room that looks like it was made for the purpose, and the air conditioner is blasting.
Inside, private tatami rooms are lined up in rows.
It got cold, so we went back to the steam sauna.
An orgy was being held in the sauna, centering on tall, muscular, and handsome men with big cocks.
The number of participants is increasing rapidly.
The orgy developed with the big-bodied, slutty, good-looking guys.
The main guy disappears.
I start again with my dad who was sitting in the back of the room.
And he's got a big, thick cock...
Some guy gets in the way of us on the way out...
We were sitting in the corner and we were having so much fun that no one else could get in....
I sucked my dad's cock.
I ejaculated first and left the sauna
The steam sauna is the most exciting part of this hot spring development.
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