The Southern Sands precinct in the city of Onkaparinga is one of South Australia's most beautiful coastal strips, south of Adelaide.

From Cactus Canyon, and the sheer cliffs of Sellicks Beach in the south, the precinct extends about 8 kilometres to the northern side of Aldinga Beach near Snapper Point. And within that distance is a firm sandy beach more than 6km in length.

The aquatic reserve known as the Aldinga Reef is a popular dive location at the northern end. Behind the beach, the Washpool and Aldinga Scrub Conservation Park cover about 300 hectares and are significant for their natural assets and Aboriginal cultural heritage.

New lookouts are underway or planned for Main South Road above Sellicks Beach and at the intersection of the Esplanade and Gulf View Road together with a new entry statement for Sellicks Beach Village.

Sellicks Beach is popular for swimming, boating, windsurfing, fishing and local events.

Boat launching facilities are available and flathead, mullet, snapper, tommy ruff and whiting are caught regularly.

From the lookouts, the views are spectacular to the sea, the northern coastline and the Willunga scarp and eastern hills.