While there are no free campgrounds within Canberra city limits, you can find free camping options in the nearby surrounding areas. One popular option is the Blue Range Recreation Area, located in the Brindabella Ranges, about an hour's drive from Canberra. This area offers basic facilities and is suitable for tents, caravans, and camper trailers. Another option is the Yass River Rest Area, located approximately 45 minutes north of Canberra, offering basic facilities and suitable for tents and caravans. Please note that while these campgrounds are free, they may have restrictions on the length of stay and require campers to adhere to Leave No Trace principles.