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Kushiro Marshland

Japan's largest wetland, and the reason red-crowned cranes still exist in the country at all.

Updated 29 August 2026

WhereHokkaido
Nearest cityKushiro; the marsh begins on the city's northern edge
Best seasonJune to September; cranes December to March
Time to allowA day
Getting thereObservation decks and boardwalks off Route 53; the JR Senmo Line runs along the edge
EntryFree at most decks

Kushiro Shitsugen covers roughly 29,000 hectares of reed and sedge marsh behind the coast of eastern Hokkaido, and it survived because it was too wet to drain profitably while the rest of Japan's lowland wetlands were converted. It was the country's first Ramsar site in 1980 and became a national park in 1987. The red-crowned crane was believed extinct in Japan until about thirty birds were found here in 1924; feeding stations established during hard winters and protection since have brought the Hokkaido population back to well over a thousand. They are the reason most people come, and winter is when they concentrate at the feeding sites and perform the courtship dance. In summer the marsh is a green plain crossed by boardwalks, viewed from raised decks at Kottaro and Hosooka, with canoe trips down the meandering Kushiro River.

The landscape

  • The largest wetland in Japan - about 29,000 hectares of reed and sedge marsh.
  • Red-crowned cranes - rediscovered here in 1924 and recovered since.
  • Winter dancing - the courtship display at the feeding stations in the cold months.
  • Boardwalks and decks - raised viewpoints and canoe trips on the meandering river.

When to go

December to March for cranes; June to September for the green marsh. A day.

Before you go

The marsh is flat and, without cranes, visually monotonous to some. Cranes are distant - bring binoculars or a long lens. Winter temperatures are severe at the feeding sites. Public transport to the decks is sparse.

Nearby

Lake Akan is north; Kushiro city and its port are south.

Key facts

Local name釧路湿原 (Japanese)
Heritage statusRamsar site; Natural Monument of Japan
Location43.0718° N, 144.3886° E · map

Source: Wikidata, item Q11648300, read on 18 October 2026.

What to pack for Kushiro Marshland

Chosen from what this place is for. Tap a kit for the full checklist.

  • Broken-in walking shoes or boots - Grip and ankle support matter more than looks; never hike in brand-new boots. Find on Amazon
  • Quick-dry clothing - Board shorts or synthetics that shrug off spray and dry fast. Find on Amazon
  • Layers + a waterproof shell - Mountain weather turns fast; a packable rain jacket saves the day. Find on Amazon
  • Secure water shoes or reef boots - Grip on slippery launches and protection on rocky shores. Find on Amazon

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Plan your trip

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Opening times, ticket prices and seasonal closures change - check the official source before you go: official site.

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