Mt. Fuji International Marathon 2026 is a major road-running event in the Lake Kawaguchiko and Lake Saiko area. It brings runners to the northern side of Mount Fuji and forms one of the region's best-known annual sporting weekends.

The event includes the main marathon programme, with route and entry details set by the organiser. Even visitors who are not taking part should be aware that a large running event can affect local roads and transport around the lakes.

If you plan to travel through Fujikawaguchiko or toward Saiko during the event period, check the official marathon information for the confirmed race schedule, route map and any traffic guidance before finalising plans.

Official source: Fuji Five Lakes official event calendar ↗