Snow corridor appears on Hakkoda Gold Line at end of March every year.
Road of Hakkoda Gold Line between Sukayu Onsen and Yachi Onsen close during every winter due to heavy snow.
The road is cleared away the snow in March and reopened in April.
You can see the corridor until beginning of May.
Day tour to visit here
Mt.Hakkoda sightseeing half-day tour
Only between April and beginning of May