Clayton Bay is a small town on the River Murray in South Australia. The town is located opposite the north-east tip of Hindmarsh Island, 87 kilometres by road from Adelaide or 12 kilometres upriver from Goolwa. At the 2011 census, Clayton Bay had a population of 240.


Clayton is a quiet holiday hamlet that cherishes its seclusion and welcomes visitors who appreciate the tranquility of its sunny Autumn and Winter days or enjoy the breezy summers that attract sailors, fishermen and holiday makers each year. The Lower Murray Wetlands has gained prominence with its well-deserved classification as a migratory bird habitat of world stature. The sheltered waters of Clayton Bay and nearby islands make an ideal location for all types of water sports or just to simply go fishing. The foreshore reserves have an oval, playground, shady trees, lawned picnic spots and hours of pleasant walking around the water's edge with excellent bird watching.