Henri Freycinet Harbour also known as Freycinet Estuary is one of the inner gulfs of Shark Bay World Heritage area that lies to the west of the Peron Peninsula.
It has a significantly larger number of islands compared to Hamelin Pool – and has a number of smaller peninsulas known as 'prongs' on its northern area. It has also been identified as a critical dugong habitat area.
It is situated within the Shark Bay Marine Park
The estuary has been dredged as part of works related to the Shark Bay Salt Joint Venture
Coordinates: 26°20′S 113°40′E / 26.333°S 113.667°E