Onnenai boardwalkPhoto: User:欅 / CC BY-SA 3.0
Checked against official sources · updated · Takumi Yamada
The barrier-free way into the marsh — a flat wooden path straight out into the reeds from the Tsurui-line bus. The wheelchair- and knee-friendly wetland option. Part of the boardwalk is closed for rebuilding from 28 September 2026 to 12 February 2027, and the visitor centre closes on Tuesdays.
- Reachable on foot from the berth, so no timetable can strand you.
- 4 hr door to door needs a 6-hour call: a 2–3 hour stop cannot hold it. Pick something closer instead.
Why Onnenai boardwalk is famous
A wooden boardwalk running out into the marsh itself, rather than looking at it from a hill, with alder swamp and sphagnum bog either side. The visitor centre at the start explains what you are standing on: peat several metres deep, laid down over thousands of years.
Where the 4 hr goes
Counted from the moment you step off the gangway, about 30 minutes after the ship arrives. The hour before all-aboard is not in this bar; it is already set aside.
about 5 minutes each way is the measured figure for tsurui-line bus, 5 min past the observatory · then 5 min walk · flat, not the optimistic one. If your ship is late, cut the 3 hr 50 min in the middle. Never cut the hour at the end.
Routes that already include it
Each one is a finished day timed from the official timetables, with this stop in it. Read the route rather than assembling it yourself.
What to put beside it
Each of these still lands you back aboard with the hour to spare.
Eat · ~1hKattedon at Washo Market
Buy a bowl of rice, then assemble the sea one stall at a time — crab, uni, salmon, whatever the boats brought.
See the detail See · ~2.5hKushiro Marsh
Japan’s largest wetland — a Kanto-plain of reeds, rivers and cranes.
See the detail
See · ~2.5h by taxiRed-crowned Crane Park
The tancho — the crane on every wedding kimono — guaranteed in any season, in the marshland that saved the species from a final count of ~30 birds.
See the detail