This photo was made in the summer of 2024. The location is  around the western corner of   Petrel Cove on the southern Fleurieu Peninsula. It was the late afternoon to avoid the bright light of the summer sun.  

The dried out salt depends on high tides, no sand cover,  and the summer heat to evaporate the seawater in the rock pools during the day.  Outside of summer there are  the various rock pools that do not evaporate.