Open-air outdoor bath
Dry heat sauna room
Uses natural hot spring water
Restaurant or dining open to visitors (not just hotel meal plans)
Shower, wash stations, soap and shampoo provided
Towels available to rent or borrow
Sodium spring
An alkaline simple thermal spring served at 43.2 °C. With pH 9.1, the water sits in the slippery, skin-smoothing range that earns the Japanese "beauty-water" label. Aside from a noticeable fluoride reading (about 14 mg/kg), the mineral load is light, leaving the bath gentle and soft on the body.
Analyzed May 17, 2022·三重県保健環境研究所
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Dinara
We stayed overnight here. Nice little ryokan — there's an old wing and a new one where everything in the rooms is fresh and new. The food is good. If you're not a kaiseki fan, you can get a plan without dinner and just eat at the same restaurant a la carte (quite affordable and varied). Besides this restaurant, the only other option is to bring your own food and have a picnic on the riverbank right here. Higaeri is available. For guests, the onsen is open until 23:00 and then from 6 AM. I went at 6, hoping to be first, but apparently two other Japanese women had the same idea. I outlasted everyone and managed to take photos before the later crowd arrived. The water is alkaline (9.1 pH) but doesn't feel very slippery. Hot (43.2 degrees), there's a sauna and a cold bath (not very cold). The river view is partly blocked by a fence (the last photo shows this rotenburo from the road), but the mountains are perfectly visible, and if you sit close to the fence, you can see the river too.
