
Overview
Nanohana Park is a park in Iiyama, Nagano Prefecture, famous for its sweeping fields of rapeseed (nanohana) along the Chikuma River. In spring the slopes turn into a golden carpet, and with the gently flowing river and snow-capped mountains beyond, a peaceful countryside scene unfolds. It is a scenic spot cherished as the setting evoked by the beloved Japanese school song Oborozukiyo (Hazy Moonlit Night).
Highlights
- ●Sweeping rapeseed fields turning the slopes golden
- ●The pairing with the gently flowing Chikuma River
- ●A tranquil countryside scene evoking the song Oborozukiyo
- ●Views of Shinshu mountains beyond the flower fields
History
The blanket of rapeseed blossoms here has long been loved as a scene that symbolizes spring in Iiyama. The sight of the gently meandering Chikuma River set against the yellow flowers calls to mind the world of Oborozukiyo, a school song that sings of a tranquil hometown, and it has won the affection of many visitors.
Access
The park lies along the Chikuma River in Iiyama, Nagano Prefecture (around 36.88 degrees north, 138.41 degrees east). Access by car from central Iiyama or nearby stations is convenient. The park is especially busy during the rapeseed season, so check official sources for the latest bloom conditions, event schedules and parking.
Best season
The best time is spring (typically around late April to early May), when rapeseed blossoms fill the slopes. The scene woven from the yellow flower fields, the Chikuma River and the distant mountains is wonderfully photogenic. As the flowering period shifts from year to year, it is best to check the latest bloom information before visiting.
Map
36.8833, 138.4069 · Wikidata
Suggested itinerary
- 1Head to Nanohana Park by car from central Iiyama
- 2Enjoy the slopes full of rapeseed and views of the Chikuma River
- 3Walk slowly through the park and take photos
- 4Combine the visit with Iiyama sightseeing and local cuisine
Did you know?
💡 Nanohana Park is often spoken of alongside the imagery of Oborozukiyo, a school song about a hometown in spring. The yellow flower fields spreading along the Chikuma River are cherished as a signature scene of spring in Iiyama.
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