Camp Blue Diamond is a beautiful campground situated in Petersburg, Pennsylvania. The surrounding views are breath-taking, with the mountainous terrain and lush, green forests. The campground offers several onsite activities such as hiking, biking, swimming, and fishing. Campers can also explore nearby attractions such as Penn's Cave and the Lincoln Caverns. The campground also offers various amenities, including a playground, basketball court, and fire rings. Reservations can be made online, and the campground has a total of 200 campsites, including RV sites and tent sites. The best time to visit is during the summer months, with average temperatures ranging from 70-80 degrees Fahrenheit.