Cosy Corner Beach is a 550-meter-long southwest-facing beach located on the northern side of a wide embayment between Cape Hamelin and Knobby Head in the Shire of Augusta Margaret River. The beach is accessible by a two-wheel drive vehicle via Cosy Corner gravel road, which terminates at a car park situated on a 40-meter-high western headland overlooking the beach. This provides a significant carry distance down to the water's edge. The overall character is defined by its protection from the prevailing southwest swells by numerous offshore rocks and reefs, including the Honeycomb Rocks to the south. This results in average wave heights of less than one meter, though the beach is noted for rugged swells that can be hazardous. The waves break across a mixture of intertidal beachrock and a central and western sandy low tide terrace. The beach is backed by rising vegetated dunes. For paddlers, this suggests a launch that may involve navigating a mix of sand and rock, with conditions heavily influenced by the tide exposing the beachrock terrace. The area is unpatrolled by lifesaving services and carries a general hazard rating of 5 out of 10. The primary safety consideration is the potential for sudden, powerful swells, which have been known to wash people off rocks in the vicinity; caution is strongly advised. The aesthetic is rugged and natural, with no facilities directly at the beach aside from the car park. The water temperature averages around 19°C.