How do I get to Onnenai Boardwalk?

From JR Kushiro Station, take the Akan Bus (Tsurui Line or Hororo Line) to the 'Onnenai Visitor Center' bus stop, then walk about 5 minutes to the Visitor Center. Alternatively, you can drive or take a taxi directly to the Onnenai Visitor Center. Free parking is available.

What can I see at Onnenai Boardwalk?

Walk through Kushiro Marsh on a wooden boardwalk, spot wildflowers, birds, and sometimes red-crowned cranes. The area is famous for its untouched wetland scenery.

Is there an entrance fee for Onnenai Boardwalk?

No, the boardwalk is free to enter. Parking at the visitor center is also free.

Are there facilities at Onnenai Boardwalk?

Yes, the Onnenai Visitor Center has restrooms, a small shop, and educational displays about the marsh.

When is the best time to visit Onnenai Boardwalk?

Late spring to autumn is best for walking and birdwatching. The boardwalk may be closed in winter due to snow.

Onnenai Boardwalk – Walk Through Kushiro Wetlands

Overview: The Gateway to Kushiro Marsh’s Heart

Onnenai Boardwalk (温根内木道) is a wooden path stretching deep into the Kushiro Shitsugen National Park. This easy, accessible trail lets you experience the marsh’s unique ecosystem up close—without getting your feet wet! The boardwalk is famous for wildflowers, birdwatching, and serene wetland views.

Onnenai Boardwalk through Kushiro wetlands

Wildflowers and marsh scenery at Onnenai Boardwalk

What Makes Onnenai Boardwalk Special?

The boardwalk is flat and well-maintained, making it suitable for all ages. In spring and summer, the marsh bursts with blooming flowers and singing birds. The Onnenai Visitor Center at the entrance offers maps, exhibits, and a place to rest before or after your walk.

Easy, barrier-free access to the marsh
Rich variety of wetland plants and flowers
Excellent birdwatching (look for red-crowned cranes!)
Peaceful, uncrowded nature experience
Visitor center with restrooms and displays

Local Legend: The Whispering Marsh

Locals say the marsh “whispers” on quiet mornings, as wind and water move through the reeds. Some believe these whispers are messages from the spirits of the wetlands, protecting the rare plants and animals that live here.

Local saying:
「湿原のささやきは自然の声」
Translation:
"The marsh’s whispers are the voice of nature."

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How to Get to Onnenai Boardwalk (Last updated: May 25, 2025)

Departure	Route	Travel Time	Approx. Fare
JR Kushiro Station	Take the Akan Bus (Tsurui Line or Hororo Line) to "Onnenai Visitor Center" bus stop → Walk 5 minutes to the Visitor Center Or drive/take a taxi directly to Onnenai Visitor Center	Approx. 40 min (bus)	Approx. ¥1,000 (bus)
Kushiro Airport	Airport shuttle bus → JR Kushiro Station → Akan Bus (Tsurui Line or Hororo Line) to "Onnenai Visitor Center" bus stop → Walk	Approx. 1 hr 30 min	Approx. ¥1,800–2,200
JR Mashu Station	JR Senmo Line to JR Kushiro Station → Akan Bus (Tsurui Line or Hororo Line) to "Onnenai Visitor Center" bus stop → Walk	Approx. 3 hr	Approx. ¥2,500
Akan Bus	Tsurui Line / Hororo Line: Get off at "Onnenai Visitor Center" bus stop → Walk 5 min	From Kushiro: 40 min	Approx. ¥1,000
*Trains and buses are infrequent—please check the timetable in advance. Free parking is available at the Visitor Center.

From JR Kushiro Station, take the Akan Bus (Tsurui Line or Hororo Line) and get off at the "Onnenai Visitor Center" bus stop, then walk 5 minutes.
If coming by car, free parking is available at the Onnenai Visitor Center.
Recommendation: Early mornings are best for birdwatching and peaceful walks.

Note: The boardwalk is free and open during snow-free seasons. It may be closed in winter—please check in advance.

Boardwalk Details

The main boardwalk loop is about 2km and takes 40–60 minutes at a relaxed pace. Side trails offer different views of the marsh. The path is flat and suitable for wheelchairs and strollers.

Official Website

For more details, please visit the official website.

Visit Official Site

Activity Information

Location: Onnenai Boardwalk, Kushiro Shitsugen National Park, Hokkaido, Japan
Opening Hours: 9:00 AM – 5:00 PM (closed in winter)
Recommended Season: Late spring–autumn (walking, birdwatching, wildflowers)
Admission Fee: Free
Facilities: Visitor center, restrooms, parking, shop, displays
Notes: Trains are infrequent; check the schedule in advance.

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