Beach KI 21 is the longest beach and extends for 1.1 km along the northern shore of the bay, with Cottons Creek draining out across the centre of the beach and a second small creek to the south. The beach faces southeast and is fronted by a discontinuous series of rock flats and reefs extending 50 m offshore, with sandy sections in between. It receives waves averaging over 1 m, which break across the rocks and maintain a few permanent rips. It is backed by 20 m high slopes draped by Pleistocene and smaller Holocene transgressive dunes, the Pleistocene dunes reaching as far as City of Melbourne Bay. A small rock outcrop and reef separate the main beach from beach KI 22 that extends for another 400 m to the southwest across the mouths of two small creeks. This is a sandy beach with usually a reflective to narrow low tide terrace surf zone, backed by partly cleared farmland rising to 100 m. read more

Beach Length: 0.4km