South Marcum Campground offers 158 reservable campsites on the southeastern shore of Rend Lake, with electric hookups at most sites, a boat ramp, dump station, hot showers, and flush toilets.

The campground provides direct access to over 20 miles of paved biking trails and is well-positioned for fishing, boating, and water-based recreation on the 20,633-acre lake. Reservations are available through Recreation. gov or by calling 1-877-444-6777.