The Yambuk Important Bird Area comprises a 10 km2 tract of coastal land fronting Bass Strait in south-western Victoria, south-eastern Australia.
It lies some 20 km west of the town of Port Fairy and encompasses the lower reaches of the Eumeralla River and Lake Yambuk.
Lake Yambuk is an estuarine lagoon which receives freshwater inflows from the Shaw and Eumeralla Rivers and, when open, from tidal seawater.
When the mouth of the estuary is closed by a build-up of silt, the lake is flooded by freshwater until the entrance is opened mechanically.
[1] The site has been identified as an Important Bird Area (IBA) by BirdLife International because it supports a wintering population of critically endangered orange-bellied parrots, a breeding population of hooded plovers, and has regular records of Australasian bitterns.