Camp Mystery is a serene camping area in Washington that provides scenic views of the surrounding countryside. The area offers a range of activities such as hiking and fishing, and amenities include picnic tables, fire pits, and restrooms. The campground is first-come-first-served, and there are 20 campsites available. The best time to visit Camp Mystery is during the summer months, with average temperatures ranging from 60-80 degrees Fahrenheit. Overall, this campsite is perfect for nature lovers looking for a peaceful escape.