Discover Marion/Shawnee National Forest KOA Holiday, the premier destination for campers seeking fun, adventure, and natural beauty. Located in Southern Illinois, our campground is nestled within the renowned Shawnee National Forest alongside the stunning Lake of Egypt. A true paradise for hikers, bikers, boaters, anglers, and nature lovers. Our campground is the perfect balance of excitement and relaxation. We host live music events, holiday events, yoga and art classes, lakeside family reunions and all kinds of local celebrations.