The central Murray wetland system consists of ten wetlands on the River Murray floodplain. Nine of these can receive environmental water: Lake Cullen, Hird Swamp, Johnson Swamp, Round Lake, McDonalds Swamp, Lake Elizabeth, Lake Murphy, Richardsons Lagoon and the Wirra–Lo wetland complex. These are all wetlands of regional significance.
The central Murray wetlands are almost wholly contained within the Torrumbarry Irrigation Area. This area has experienced dramatic changes since European settlement with the construction of levees, roads and channels. Most of the wetlands are now cut off from natural flooding and rely on the provision of environmental water to maintain their ecological character and health.
Guttrum and Benwell forests are a regionally significant wetland system and border the River Murray. Neither forest has permanent infrastructure to deliver environmental water although some semipermanent wetlands can be watered via temporary pumping from the River Murray.