Rainbow Falls State Park

Rainbow Falls State Park is a public recreation area on the Chehalis River one mile east of the town of Dryad, Washington. The state park's feature of shoreline, the waterfall for which the park is named, and some of the last standing old-growth trees in the Chehalis Valley.
History.
The Civilian Conservation Corps built the park and its log structures in 1935. In 2007, the park suffered severe flooding which destroyed bridges along the Willapa Hills Trail as well as the park's main entrance. Park-goers began using an alternate entrance to the park in May 2008.
Activities and amenities.
The park offers camping, hiking trails, fishing, and swimming.