Peel-Yalgorup Wetlands National Park in Western Australia is a important designated Ramsar site.

The wetlands are a combination of a shallow saline estuary and brackish freshwater lakes that is used by tens of thousands of waterbirds, including large numbers of migrant shorebirds from the northern hemisphere.

Vegetation consists of fringing, samphire flats giving way to rushes, sedges and trees tolerant of water logging with open woodland.

The site is the most important area for waterbirds and waders in Southwest Australia, regularly supporting over 20,000 birds.