Seseragi Onsen

[Good Points] The oily smell mentioned in other comments was hardly noticeable. It was a gift from underground. The spring water, full of rustic charm, was quite warm, not too hot, but it kept me sweating nonstop. Even without a sauna, I was able to sweat enough. The view from the open-air bath was great, and although it was partially visible through the roofs of the buildings, the dazzling greenery of the mountains was a sight to behold. The adjacent Seseragi Park is also recommended for families. [Bad Points] As mentioned in other comments, an elderly regular bather was in the open-air bath for an hour and a half (the time I was there), chatting away so loudly that it could be heard all the way to the indoor bath. Just when I thought a staff member would come around and calm things down, he joined in, chatting away. There was a big "Silent Bath" sign at the entrance to the bathhouse, but he was speechless. It ruined the wonderful location, with the birdsong and fresh greenery. It's a real shame. [Summary] Perhaps because it was a weekday, it was quite quiet. It's a real shame. Even though it's a facility connected to Takasaki City, it seems to be solely for the locals. To increase the number of visitors, the first thing that is needed is to thoroughly implement silent bathing (instructing regulars) and advertising at roadside stations. Perhaps they don't want to increase the number of visitors? The city hall needs to understand this as well.

We visited during the May Golden Week holidays, so there were many people camping on the nearby riverbank and families playing in the park. The last time we visited, it was during the COVID-19 pandemic, so there were only us and two other groups there and it was quite quiet, but this time everyone seemed to be having a great time. The admission fee varies between Takasaki residents and non-residents. There are two baths: an indoor bath and an outdoor bath. The water is brownish and slightly salty, making it difficult to see where you step, so be careful of the steps when getting in. There are also warning signs. There is a Japanese-style lounge and table seating where you can take a break after bathing. No meals are served, but small snacks, cup noodles, ice cream, and drinks are sold. Some people brought their own. There are lockers in the changing rooms for free.

I'm a Takasaki resident and have been here a few times! This hot spring is amazing! If you go a little further up the road, there's another hot spring with the same quality, so you might be wondering what the difference is, but I think it's the proximity of the source. Since Seseragi-no-Yu is closer to the source, it seems they add a little water, but the oily smell is the same as up there. The water is cloudy and smells oily, and there's oil floating on the surface. Plus, it's only 320 yen for Takasaki residents. If you're interested, why not give it a try? The water temperature is just right, around 41°C, I think. Oh, and it seems you can bring food and drinks into Seseragi-no-Yu.

This is a very warming hot spring. The color is similar to Ikaho's Koganeyu, but this one is more of an ochre color. It also has a unique smell, and as the reviews say, it has an oily smell. Looking at the surface of the water, it looks like there's a little bit of oil floating on top. There is one open-air bath and one indoor bath. The water temperature feels like about 41°C. It feels nice on the skin, so you can stay in for a long time. Be careful not to get overheated. There is no restaurant on site, but they do sell light snacks, such as rice balls, bread, and instant noodles. I envy the people of Takasaki. To be able to enjoy this hot spring for so cheap! ️ I'll come again.

This hot spring is for day-trippers only, and apparently in the past only local residents could bathe in it, but now anyone can enter. The water is a sodium chloride spring with a mixture of iron and oily smells, and a slightly dusty smell. The taste is quite salty and has an iron smell. Interestingly, while chloride springs usually feel slippery to the touch, this one contains a very high amount of metasilicic acid and metaboric acid, so when you touch your skin in this hot spring, it feels squeaky clean. I hope you will enjoy this very warming and interesting hot spring. Thank you.