
Katahara Onsen Hydrangea Village
About an hour and a half from Nagoya, some 50,000 hydrangeas bloom across a hot-spring hillside in Gamagori each June — and on festival evenings the flowers are lit until night.
Plan your visitAbout an hour and a half from Nagoya, a quiet hot-spring hillside in Gamagori turns blue and purple every June. Some 50,000 hydrangeas open across the slopes of Katahara Onsen, along the paths and around a pond crossed by a small red bridge. For one month the resort becomes one of Aichi's best-loved places to see the rainy-season flower — and, unusually, to see it after dark.
A hillside of hydrangeas
The plants climb the slope in banks of blue, violet and pink, changing tone with the soil and the light. Gravel paths wind up between them, past the pond and the arched red bridge that gives the garden its picture. This is a cultivated garden rather than a wild one, planted and tended over decades, and in a good year the colour is remarkable.

Lit until night
What sets Katahara apart is the evening. During the festival the garden stays open into the night and the hydrangeas are lit — soft bulbs strung over the paths, the red bridge glowing above its pond. Walking those lit paths in the damp June air, with the hot spring just beyond, is a gentler, quieter thing than a daytime visit. On clear nights you may even catch a Genji firefly drifting over the water; they live here because the water is clean, and local people are quietly proud of it. Fireflies keep their own schedule, so nothing is promised — but the chance is part of the charm.

Good to know
The Hydrangea Festival runs through June each year, with peak colour usually in the middle to latter half of the month. Admission is about ¥500 for adults and free for small children, with a small charge for parking. Bring light rain gear — this is the rainy season, and part of the appeal — and come toward evening if you can, to catch both the flowers and the light-up. Dates and hours shift a little from year to year, so check the official page before you travel.
Want the full story of a June evening here? Our blog piece, a hillside where 50,000 hydrangeas light up at night, goes deeper. For another way to spend a summer night near Nagoya, Nagara River cormorant fishing in Gifu is at its best from May to October.
In pictures


Highlights
Around 50,000 hydrangeas
Blue, violet and pink hydrangeas fill the hot-spring hillside, their tones shifting with the soil and the light. In a good year the colour is remarkable.
Lit up after dark
During the festival the garden stays open into the evening and the flowers and red bridge are lit — a soft, quiet walk you rarely get with hydrangeas.
Fireflies on clear nights
The water here is clean enough for Genji fireflies, which sometimes drift over the pond on warm, still evenings. They keep their own schedule, so nothing is promised.
A hot-spring setting
The garden sits within Katahara Onsen, so the flowers come with the ease of a spa town — an easy evening to fold into an Aichi–Gifu trip.
A suggested route
- 1
Village entrance
Enter from the far end of the hot-spring quarter and follow the gentle slope up into the garden.
- 2
The pond and red bridge
Midway through the garden, an arched red bridge crosses the pond — the best spot to frame the flowers and the bridge together.
- 3
Dusk into the light-up
As the light fades the lamps come on and the garden changes character. During the festival you can walk the paths into the night.
Best time to visit
The Hydrangea Festival runs the whole of June each year, roughly June 1–30. Peak colour usually falls in the middle to latter half of the month and shifts a little with the weather. This is the rainy season, so pack light rain gear — it is part of the appeal. Dates and hours change slightly year to year, so check the official page before you travel.
Getting there
- NagoyaAbout 1.5 hours. Take the train to Gamagori (JR Tokaido Line or Meitetsu), then a bus or taxi to the hot-spring area.
- Gamagori StationDuring the festival, a direct shuttle bus runs from the station's south exit (about ¥520 one way). A taxi takes around 10–15 minutes.
- Meitetsu KataharaIn season, the local "Ajisai Kururin" community bus links Meitetsu Katahara Station with the village.
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Plan your visit
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