Irwin Inlet is an inlet in the located on the Great Southern region of Western Australia. The inlet receives water from two main sources; Bow River of the North West and Kent River to the North East. The inlet itself discharges into the Southern Ocean via Foul Bay.
A sandbar across the entrance to the inlet on the ocean side, but this is often breached during the winter. The inlet cuts Peaceful Bay beach in cut in two.
The inlet is a wave dominated estuary has a total area of 13 square kilometres (5 sq mi), it is estimated that 30% of the catchment is cleared.
The inlet is slowly turning into swampland as a result of its high sediment loading and shallow depth. The basin supports large seagrass meadows and is used as a commercial fishery.
The Bibbulmun Track crosses Irwin inlet and canoes are provided in sheds on either side of the track for hikers to make the crossing with. The channel is 150 metres (492 ft) wide at the point where it must be crossed.
The Bow River is a river in the Great Southern region of Western Australia, not to be confused with Bow River in the Kimberley region of northern Western Australia.
The river rises on the eastern edge of the Frankland State Forest and flows in a southerly direction discharging into Irwin Inlet, which opens to the Southern Ocean at Foul Bay.
Bow River is a fresh water river with potential to be used as a water source in the area.The hamlet of Bow Bridge, once a timber milling and farming settlement, is located where the South Coast Highway crosses Bow River, about 25 km East of Walpole.
Forms of environmental damage have been identified at the river and its wetlands, including:
Exotic weed infestation from Watsonia, Blackberry and exotic grasses
Feral animals such as pigs and foxes
Water pollution from excess fertiliser loads added by local agricultural activity.
Pathogens such as Phytophthora.Estuaries of Australia
Estuaries of Australia are features of the Australian coastline. They are linked to tides, river mouths and coastal features and conditions. In many cases the features of estuaries are also named inlets.Estuaries of Western Australia
The estuaries of Western Australia (also known as the Inlets of Western Australia) are located along the coastline of Western Australia.
The coastline can be considered in three main sections: south, west, and Kimberley. Some estuarine features carry through all three regions.Wetlands and estuaries of the south west region have very similar ecologies and occurrences of biota.Eucalyptus jacksonii
The Red Tingle (Eucalyptus jacksonii) of south west Western Australia is one of the tallest trees found in the state.Kent River
The Kent River is a river in the Great Southern of Western Australia.
The headwaters of the river rise near Tenterden. The river flows in a south-westerly direction, crosses the Muirs Highway east of Rocky Gully, flows through Mount Roe-Mount Lindesay National Park, crosses the South Coast Highway near Kenton, flows through the Owingup Nature Reserve swampland and finally discharges into the eastern side of Irwin Inlet.
There are two tributaries to the Kent; Styx River and Nile Creek.
The river was named in 1829 by Thomas Wilson who was the first European to explore the river. He named it after a member of his exploration party John Kent, of the 39th Regiment, Assistant Commissary General at the King George Sound garrison.Walpole-Nornalup National Park
Walpole-Nornalup National Park is a national park in the South West region of Western Australia, 355 km (221 mi) south of Perth. It is famous for its towering Karri and Tingle trees. Red Tingle trees are unique to the Walpole area.
The park is part of the larger Walpole Wilderness Area that was established in 2004, an international biodiversity hotspot.