To coincide with "Ii IYOSHI Day" (いいイヨシの日) on Saturday, November 14, 2026, bathhouses and bathing facilities across Japan are holding "IYOSHI COLA no Yu," a special scented bath inspired by IYOSHI COLA (伊良コーラ), a cola specialty maker from Shimo-Ochiai, Tokyo. A new original poster has also been created for this year's event, shot at the sento 三の輪湯 in Kami-Ochiai, Shinjuku-ku, Tokyo.
It's a chance to enjoy a slightly different bath at your usual sento.
IYOSHI COLA no Yu Held Nationwide for Ii IYOSHI Day
"IYOSHI COLA no Yu" will be held at bathhouses and bathing facilities in 31 prefectures, at a total of 298 facilities as of November 5. The event is a way to enjoy the aroma of IYOSHI COLA in the bath, wrapping bathers in the scent of spices and citrus for a bathing experience with a twist.
- Participating facilities map (November 2026 edition)
- The event date differs by facility.
- Check each facility's storefront or social media for the schedule and participation details.
What Is "IYOSHI COLA no Yu"?
"IYOSHI COLA no Yu" is a fragrant special bath event held at bathhouses and bathing facilities nationwide, where guests can enjoy the aroma of IYOSHI COLA with their whole body. The bath additive was developed jointly with 健美薬湯株式会社 using extract from the pressed cola lees (cola kasu) left over from making IYOSHI COLA, and it recreates the aroma of IYOSHI COLA.
The idea is to soak in the IYOSHI COLA bath and then drink an IYOSHI COLA afterward, an "IYOSHI COLA experience" that is only possible at a bathing facility.
A New Original Poster Made Locally
A new original poster has been created for the event, the third installment for "IYOSHI COLA no Yu." It was shot at 三の輪湯, a sento in Kami-Ochiai, Shinjuku-ku, Tokyo. The model is a regular at the bathhouse who is affectionately involved with IYOSHI COLA.
IYOSHI COLA says it values making someone's everyday life a little happier. The poster reflects the hope that people will enjoy "IYOSHI COLA no Yu" not only as a special event but as something that fits into daily life. The poster is also planned to be displayed at participating facilities.
Comment From the IYOSHI COLA Representative
Cola Kobayashi (コーラ小林), representative of IYOSHI COLA, said that when he was thinking about what kind of poster to make for this year's event, the first thing that came to mind was the face of Mr. Miyagawa, one of the company's business partners. Mr. Miyagawa is with a wholesale company based in Ochiai that delivers IYOSHI COLA mainly to expressway service areas. He is sometimes gentle and sometimes strict, and always treats IYOSHI COLA with affection. Kobayashi asked him to appear in the poster fully prepared to be turned down, but Mr. Miyagawa gladly accepted. The shoot took place at 三の輪湯 in Kami-Ochiai, where Mr. Miyagawa usually goes. Kobayashi suggests looking for the poster the next time you visit a sento.
三の輪湯 Details
- Address: 3-31-2 Kami-Ochiai, Shinjuku-ku, Tokyo 161-0034
- Hours: 3:30 PM to 1:00 AM
- Closed: Mondays, 2nd Tuesdays and 4th Tuesdays
IYOSHI COLA After the Bath
After a bath scented with spices and citrus, IYOSHI COLA is the suggested follow-up. Made with a blend of spices such as cardamom, cinnamon and cola nuts, along with citrus, IYOSHI COLA makes a fitting drink to have after a bath.
The idea is to enjoy the aroma in the bath, then savor a glass of IYOSHI COLA afterward, enjoying IYOSHI COLA both inside and out.
Note: IYOSHI COLA availability varies by facility.
Event Details
- Event name: IYOSHI COLA no Yu 2026
- Period: Held in sequence, mainly around Saturday, November 14, 2026
- Location: Bathhouses and bathing facilities nationwide (298 facilities in 31 prefectures as of November 5)
- Details: A special scented bath made with extract derived from the cola lees produced in the IYOSHI COLA manufacturing process
- Participating facilities map (November 2026 edition): Google Maps
Notes:
- The event date differs by facility.
- The scheduled dates may change. Check each facility's official social media or storefront for the latest information. (Some facilities hold the event on multiple dates.)
