
Guide
Ojiya Nishikigoi no Sato
9 min readOverview & Attractions
Ojiya Nishikigoi no Sato is a specialized facility where you can observe Nishikigoi—affectionately known as 'Swimming Jewels'—from a very close distance. Ojiya City in Niigata Prefecture is renowned as a major production center for Nishikigoi. At this facility, visitors can enjoy watching these brilliantly colored fish swim through both indoor tanks and outdoor garden ponds. It is a place where you can experience the breathtaking beauty of Nishikigoi, cultivated through generations of Japanese traditional techniques, using all your senses.
History & Cultural Background
The history of Nishikigoi dates back to the early 19th century during the Bunka and Bunsei eras of the Edo period. It is said that the tradition began when colorful variations appeared in the common carp that were originally raised for food in the areas of present-day Ojiya and Nagaoka in Niigata Prefecture. Through the rigorous research and continuous refinement by many dedicated breeders within the snowy environment of Ojiya, the craft has been perfected. Today, Ojiya holds a prestigious brand status for Nishikigoi, earning high acclaim both within Japan and internationally.

Main Highlights
Inside the facility, you can observe a wide variety of Nishikigoi species. In the indoor tanks, you can get a much closer look at the intricate patterns and vivid colors of the fish as they glide gracefully through the water. Additionally, the outdoor garden features well-maintained ponds, allowing you to enjoy the sight of the koi swimming in a naturalistic setting. During seasonal exhibitions and competitions, high-quality Nishikigoi are gathered, offering a rare chance to witness the pinnacle of Japanese breeding technology and artistry.
Seasonal Recommendations
While Nishikigoi are on display throughout the year, the experience changes with the seasons. Special exhibitions are held in the spring and autumn. In spring, you can witness the 'Echigo Ojiya Tatekoi 品折会' (Tatekoi Exhibition), featuring 'Tatekoi'—fish that have successfully survived the harsh winter. In autumn, the facility hosts the 'Niigata Nishikigoi Exhibition,' part of the National Agriculture, Forestry and Fisheries Festival, showcasing the finest Nishikigoi from across Niigata Prefecture. Visiting during these times allows you to see the highest level of craftsmanship in these living jewels.
Activities & Experiences
The facility offers a hands-on koi feeding experience. By feeding them, you can watch the Nishikigoi gather at the water's surface in a spectacular display. Please note that the sale of food is limited in quantity and will end once the stock is depleted. Additionally, food sales may be restricted depending on the season or the health management of the fish, so we recommend checking the status of availability upon arrival.
Surrounding Area
Ojiya City is home to various other historical structures and scenic natural spots. A common way to enjoy your visit is to combine a trip to Nishikigoi no Sato with sightseeing through the local townscapes and cultural sites. Exploring the area alongside seasonal festivals or local history museums will deepen your understanding of the rich cultural charm of Niigata Prefecture.
Practical Information
We recommend wearing comfortable walking shoes, as you will be moving around outdoor ponds and garden paths.
- Payment Method: Cash is required for admission fees. The fee is 330 JPY for elementary and junior high students, and 550 JPY for adults (based on the pricing structure from December 2025).
- English Support: English signage and English-language videos are available at the facility.
- Reservations: No advance reservation is required, but please check the official website before visiting, as the facility may close temporarily for maintenance.
- Photography: Please follow the local rules regarding photography within the facility.
- Nishikigoi Ownership System: While there may be programs to 'adopt' a fish for 100,000 JPY per fish, please note that there is a rule prohibiting the removal/taking of the fish from the premises.