Momiji Corridor is a short riverside walk near Lake Kawaguchiko, best known for its autumn colours. Maples, gingkos, and other trees line the water on a gentle slope, making it one of the easier seasonal walks in the Fuji Five Lakes area.
The corridor is especially pretty during the autumn leaf season, when the trees are lit after dark. Outside that window, treat it as a pleasant local stroll rather than a major sight.