Nestled along the southern coast of Adelaide, South Australia, Maslin Beach stands as an outer coastal suburb, approximately 40km from the city centre. Within the City of Onkaparinga local area, Maslin Beach’s neighbouring suburbs include Seaford, Moana, Seaford Rise, and Port Noarlunga.

Moana's Gulf St Vincent beachfront features a blend of low cliffs, sand dunes, and firmly compacted sand. This accessible stretch of coastline welcomes regular passenger vehicles and stands out as one of the rare beaches permitting cars to drive directly onto the sands.