Located in Cardinal, Ontario along the scenic St. Lawrence River corridor, the Cardinal / Ottawa South KOA Holiday is a full-service campground ideal for RV travelers exploring Eastern Ontario. Situated roughly 80 kilometres south of Ottawa, this KOA offers convenient access to Upper Canada Village, the St. Lawrence Parks, and the natural beauty of the Thousand Islands region. The campground is big-rig friendly with pull-through sites available and offers 30-amp and 50-amp electrical hookups, water hookups, and a dump station. Guests can take advantage of a swimming pool, modern shower and toilet facilities, laundry services, and free internet access. Outdoor amenities include picnic tables, grills, a playground, and firewood for sale, making it a well-rounded destination for families and couples alike. Propane is available on-site for added convenience. RV storage is offered for those needing a secure option. Pets are welcome, adding to the campground's family-friendly appeal. Whether passing through on a road trip along the St. Lawrence Seaway or using it as a base to explore the rich history and natural scenery of the Ontario-Quebec border region, this KOA Holiday delivers a dependable and comfortable outdoor experience.