Caribou Island camping area in Illinois offers stunning views of the Mississippi River and surrounding bluffs. Nearby activities include hiking, fishing, and boating. The campground has basic amenities including vault toilets and fire rings, but no potable water. It operates on a first-come-first-serve basis with 15 primitive campsites available. The best time to visit is in the fall when the leaves change colors, with average temperatures ranging from 50-70°F.