Rainbow Falls State Park is a 139-acre camping park with 3,400 feet of freshwater Shoreline
on the Chehalis
River. Situated in stands of old-growth forest, the park features a waterfall and a small fuchsia garden.The park has 45 tent spaces, one dump station, one restroom, two showers and eight hook-up sites.Constructed in 1935 in the heart of old-growth forest, this wooded park is known for its rainbow-crowned waterfall, which gives the park its name. A garden displaying 40 varieties of fuchsia is a favorite with visitors.park located 17 miles west of Chehalis.