The 21 acres of Numanohara Marsh are home to a huge variety of flowering plants and wild birds. Beginning in late April, when the snows begin to melt and spring arrives in full force, the marsh plants burst into brilliant color. The white skunk cabbage and yellow marsh marigold are particularly lovely, bright against the remaining snow.
The marsh is only a short walk from the parking area, with a boardwalk offering easy access throughout most of the marsh. Visitors can enjoy walks along the Long Course (Full perimeter and inner marsh, 1.5 hrs) or the briefer Short Course (40 minutes).