Opening hours of Camping Ground in Diehard, New South Wales Opening hours of Camping Ground in Diehard, New South Wales Home / New South Wales / Diehard / Camping Ground Camping Ground Mann River campground and picnic area 11780 Old Grafton Rd, Diehard NSW 2370, Diehard, New South Wales 1178 (02) 6739 0700 Categories of local businesses in Diehard Camping Ground Park Picnic ground