Falls Creek Falls ~ Gifford Pinchot National Forest; 15 miles north of Carson,WA. Great hike for kids, beautiful stream, breathtaking waterfalls at the end! Mostly easy, 3.4 miles roundtrip. Go in early summer (season May-Nov). Comments: 3.4 miles out-and-back to the lower falls. You can keep going to the upper falls which isn't very impressive. No fee for access.