Nanae, Hokkaido / 大沼国定公園
Onuma Quasi-National Park
Lakes Onuma and Konuma, dotted with 126 islets joined by bridges and walking paths, beneath Mt. Komagatake; 10 min by limited express from Shin-Hakodate-Hokuto.

Last official check
25 Sept 2026
Traveler reports
0
Reports open in Phase 2
Next scheduled check
24 Dec 2026
Decide before you go
A short summary made from the official facts below. Check the rows for details.
- Getting there
- Train / Bus / Car
Before you go
Only facts we confirmed on official sources are shown. Anything else is listed under “Not yet confirmed”.
- Getting there
To JR Onuma-Koen Station: about 30 min by Hokuto limited express from Hakodate (about 50 min by local train) or about 10 min from Shin-Hakodate-Hokuto. From the station, about 5 min on foot to the park plaza entrance (boat pier): with the station behind you, pass Numa-no-Ya on the left, turn left at the lights and walk about 400 m. From Hakodate Airport, the Onuma Kotsu shuttle bus to Onuma-Koen takes about 70 min. By car, about 30 min from Hakodate Airport or 40 min from Hakodate Station.
Checked 25 Sept 2026 on a tourism board site- Parking
There is the Minami-Onuma car park between Onuma-Koen Station and the park plaza (no fee listed).
Checked 25 Sept 2026 on a tourism board site- Not yet confirmed
Opening hours, Closed, Admission, Payment, Accessibility
we have not confirmed this on an official source yet. Check with the spot before you go.
Found wrong or outdated information? Let us know
Official site: http://onumakouen.com/
Location
We have not confirmed the location on an official source yet, so there is no map.
Crowds
- Not yet confirmed
Crowd level, Best time to visit, Peak time, Busiest days, Busiest season
no official source yet, and not enough traveler reports.
- Latest traveler report
- None yet
Traveler crowd data by time of day appears after 5 traveler reports (0 so far).
You can check typical busy hours in Google Maps ("Popular times" on the place's page). Open this spot in Google Maps
Visiting respectfully
- Local etiquetteWalking routes around the islets include the Oshima path (about 15 min), Forest path (20 min), Island loop (50 min) and Sunset Konuma path (25 min). Tourist information, sightseeing boats, rowing boats and bike rental are around the park plaza.Checked 25 Sept 2026 on a tourism board site
- Local etiquetteStay on the paths. Don't feed or touch foxes or other wild animals (risk of echinococcus), and don't drink untreated water from rivers or lakes. Take your rubbish home. The Mt. Komagatake trailhead is open only 9:00-15:00, so be back down within those hours.Checked 25 Sept 2026 on a tourism board site
- Local etiquetteGuided canoe tours run on Lakes Onuma and Konuma, with early-morning and night tours in season.Checked 25 Sept 2026 on a tourism board site
Verification log
- 25 Sept 2026First check · Tourism board · http://onumakouen.com/access/Access read from a tourism organization's site.
- 25 Sept 2026First check · Tourism board · http://onumakouen.com/feature_canoe/Activities and shops read from a tourism organization's site.
- 25 Sept 2026First check · Tourism board · https://www.onuma-guide.com/natures/routeguideHours and access read from a tourism organization's site.
- 25 Sept 2026First check · Tourism board · https://www.onuma-guide.com/natures/mannerHours and cautions and rules read from a tourism organization's site.
