Chichibu Yumoto Buko Onsen is Collecting Unused Koinobori for the "Yokoze Koinobori Festival"
Buko Onsen is collecting unused carp streamers from homes, offering a free admission ticket in exchange, and showcasing them at the "Yokoze Koinobori Festival" to revitalize the community.
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- 📰 Published: April 2, 2026 at 18:00
Chichibu Yumoto Buko Onsen (located in Yokoze Town, Saitama Prefecture, hereinafter referred to as Buko Onsen), operated by Onsen Dojo Co., Ltd. (Tokigawa Town, Hiki-gun, Saitama Prefecture; Representative Director: Toshiki Yamazaki), will launch the "Koi Koi Campaign" starting April 11, 2026, to collect unused Koinobori (carp streamers) from homes.
If you bring unused Koinobori to the facility, you will receive one free admission ticket in exchange. The collected Koinobori will be displayed at the "Yokoze Koinobori Festival," which will be held from Saturday, April 11.
The "Yokoze Koinobori Festival" is a popular annual event in Yokoze Town, where approximately 180 Koinobori adorn the skies above the Yokoze River, flowing right next to Buko Onsen. After children grow up, many Koinobori lie dormant in homes. Let's make them swim once again in the vast sky of Chichibu, wishing for the healthy growth of today's children.
Onsen Dojo, whose corporate philosophy is "transmitting culture from baths," will wholeheartedly enjoy and enliven the "Yokoze Koinobori Festival" event with the local community.
## Koi Koi Campaign
Exchange your dormant Koinobori for one free admission ticket to Buko Onsen (limited to the first 20 people).
Campaign Period: Saturday, April 11, 2026, to Friday, April 24, 2026
- Regardless of the number of Koinobori brought, only one invitation ticket will be issued.
- Koinobori can still be accepted even after all invitation tickets have been distributed.
- Koinobori will not be returned after the event concludes.
## Yokoze Koinobori Festival
Location: Above the Yokoze River near Chichibu Yumoto Buko Onsen
Event Period: Saturday, April 11, 2026, to Wednesday, May 6, 2026
Access: Approximately a 10-minute walk from Seibu Chichibu Line Yokoze Station. Free parking available.
## Chichibu Yumoto Buko Onsen
Buko Onsen is a hot spring facility located along the Yokoze River at the foot of Mount Bukō, the symbol of Chichibu. It is approximately a 10-minute walk from Seibu Railway's Yokoze Station. The facility features open-air baths surrounded by greenery, jet baths, and saunas. Accommodation facilities and a campsite are also co-located, making it an ideal base for sightseeing in Chichibu and Nagatoro.
4628-3 Yokoze, Yokoze-machi, Chichibu-gun, Saitama Prefecture
If you bring unused Koinobori to the facility, you will receive one free admission ticket in exchange. The collected Koinobori will be displayed at the "Yokoze Koinobori Festival," which will be held from Saturday, April 11.
The "Yokoze Koinobori Festival" is a popular annual event in Yokoze Town, where approximately 180 Koinobori adorn the skies above the Yokoze River, flowing right next to Buko Onsen. After children grow up, many Koinobori lie dormant in homes. Let's make them swim once again in the vast sky of Chichibu, wishing for the healthy growth of today's children.
Onsen Dojo, whose corporate philosophy is "transmitting culture from baths," will wholeheartedly enjoy and enliven the "Yokoze Koinobori Festival" event with the local community.
## Koi Koi Campaign
Exchange your dormant Koinobori for one free admission ticket to Buko Onsen (limited to the first 20 people).
Campaign Period: Saturday, April 11, 2026, to Friday, April 24, 2026
- Regardless of the number of Koinobori brought, only one invitation ticket will be issued.
- Koinobori can still be accepted even after all invitation tickets have been distributed.
- Koinobori will not be returned after the event concludes.
## Yokoze Koinobori Festival
Location: Above the Yokoze River near Chichibu Yumoto Buko Onsen
Event Period: Saturday, April 11, 2026, to Wednesday, May 6, 2026
Access: Approximately a 10-minute walk from Seibu Chichibu Line Yokoze Station. Free parking available.
## Chichibu Yumoto Buko Onsen
Buko Onsen is a hot spring facility located along the Yokoze River at the foot of Mount Bukō, the symbol of Chichibu. It is approximately a 10-minute walk from Seibu Railway's Yokoze Station. The facility features open-air baths surrounded by greenery, jet baths, and saunas. Accommodation facilities and a campsite are also co-located, making it an ideal base for sightseeing in Chichibu and Nagatoro.
4628-3 Yokoze, Yokoze-machi, Chichibu-gun, Saitama Prefecture
FAQ
When will the Koi Koi Campaign be held?
It will be held from Saturday, April 11, 2026, to Friday, April 24, 2026.
What do I get if I bring unused Koinobori?
You will receive one free admission ticket to Chichibu Yumoto Buko Onsen (for the first 20 people).
What are the highlights of the Yokoze Koinobori Festival?
The spectacular sight of approximately 180 Koinobori swimming above the Yokoze River next to Buko Onsen.