The 4200 hectares that make up Stockton Sand Dunes form the biggest system of sand dunes in Australia. Some are as high as 40 metres. You'll find them in the Worimi Conservation Lands, about 190 kilometres north of the Sydney CBD, just beyond Newcastle. Adding to their beauty is their stunning location, foregrounded by Stockton Beach — which, at 32 kilometres, is the longest beach in New South Wales — and backdropped by 1800 hectares of forest.