Eighty Mile Beach and Nearby Salt Marshes, Western Australia19.6S 121.0E
Eighty Mile Beach is the coastal edge of the arid, sedimentary Great Sandy Desert and the Canning Basin, in northwestern Western Australia, bordering the Indian Ocean. Extending in a curve northeast from Cape Keraudren (east of the De Grey River mouth) to Cape Bossut, it is about 85 miles (140 km) long, hence its name.
The beach, generally low and sandy but with an expanse of dunes in the area around Anna Plains, experiences a tidal range as great as 28 feet (9 m). It is bordered with salt and samphire (plant) marshes that extend inland. Here, the beach appears as a bright white line along the coast, while the marshy region is darker in color although still light in comparison with the rusty red terrain further inland.