
Nature
Glasswort Festival (Sangoso Matsuri)
Japanese name:さんご草まつり
📅 Tue, Sep 1, 2026 - Tue, Sep 15, 2026
About this event
Held on the shores of Lake Notoro in Abashiri City, Hokkaido, the 'Sangoso Matsuri' is an event held when one of Japan's largest glasswort (Akkeshiso) colonies reaches its peak viewing season. In autumn, the entire lakeshore is dyed in deep crimson glasswort, creating a fantastical landscape. Visitors can enjoy this beautiful natural autumnal scenery. Detailed dates and schedules for the event are often announced closer to the season, so checking the latest information on the official website is recommended. It is a seasonal autumn tradition where you can fully experience the beautiful nature of Abashiri City.
Official website (Japanese) ↗Venue
Lake Notoro
Lake Notoro, Abashiri, Hokkaido
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