Cresap Bay Park Pacificorp — RV Camping in Amboy, WA

Cresap Bay Park, operated by PacifiCorp, is a scenic campground nestled along the shores of Yale Lake near Amboy in southwestern Washington State, approximately 24 miles east of Interstate 5 via Highway 503. Set against the lush backdrop of the Pacific Northwest, this lakeside retreat offers 56 overnight campsites along with a group camping area accommodating up to 15 additional sites, making it an ideal destination for both families and larger gatherings. Campers enjoy direct access to a two-lane boat launch and an exclusive 23-slip marina reserved for overnight guests, perfect for boating and fishing on the reservoir. A dedicated swimming beach and day-use picnic areas round out the waterfront experience. On-site amenities include water hookups, restrooms, showers, an RV dump station, and a covered group pavilion with a fireplace and sink. Hiking and nature trails wind through the surrounding landscape, offering opportunities to explore the natural beauty of the region. Cresap Bay Park is an excellent base camp for exploring Yale Lake, the Lewis River corridor, and nearby Mount St. Helens National Volcanic Monument.