It is a warm bath using fermented rice bran or sawdust heated by natural microbial fermentation. It gently warms the body from the core, helping with relaxation and overall wellness.

Our shop is located in the very center of the Miura Peninsula. Just like the navel is the center of the body, we chose the name “Oheso” to represent this central location.

Do you have any questions?

Yep, it’s warm and cozy.

Even if you rarely sweat, you’ll feel it for sure.

Saunas heat you from the outside, but koso bathing warms you from the inside.

There are so many benefits—better immunity, higher metabolism, beautiful skin, and even help with weight loss!

Only by the heat from fermentation—no gas or electricity. We keep it around 60–70°C (140–158°F).

Hey, I’m your new contact!

Our bath is unisex, so all guests wear a special kosobath garment during their session.

On weekends and holidays, men can use the bath alone. On weekdays, we ask that men come accompanied by a female guest.

Small children can join, but only in private sessions.

You can make a reservation online or by calling our store directly.

Yes, we have five dedicated parking spaces right next to the store.

Have you summoned me?

Our bath can accommodate up to 4 guests at a time. For private sessions with children, we can welcome up to 5 guests.

Access & Location

Reservation Form
↑Click the link above