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Territory Darwin - Kakadu National Park
It is believed that 140 million years ago much of Kakadu was under a shallow sea. The prominent escarpment wall formed sea cliffs and the Arnhem Land plateau formed a flat land above the sea. Today the escarpment, which rises to 330 metres above the plains, extends over 500 kilometres along the eastern boundary of the Park. It varies from vertical cliffs in the Jim Jim Falls area to stepped cliffs and isolated outliers in the north.
Along the escarpment, creeks have etched deep incisions to form gorges in which tall monsoon forests have developed. Water seeping from rock walls and the deep alluvial soils provide an important micro-environment for plants and animals. Many animals rely on these areas for refuge during the drier months. The dominant plant species is Allosyncarpia ternata, a large, spreading, shady tree that is found only in the Kakadu and Arnhem Land region.
Typical examples of Kakadu's stone country can be seen from the Gunlom lookout walk and at Maguk and Jim Jim and Twin Falls.
These mottled yellow-brown rocks can be seen in road cuttings north of Cooinda on the Kakadu Highway. Resistant ancient rocks remain as low strike ridges or hills in various places.
Travelling anywhere in Kakadu, you cannot help noticing the lowlands-they make up nearly 80 per cent of the Park.
Nutrient-rich soils along with an abundance of water and sunlight make the floodplains an area of prolific plant and animal life. During the dry season the water recedes into rivers, creeks and isolated waterholes or billabongs. Kakadu's wetlands are listed under the Convention on Wetlands of International Importance (the Ramsar convention) for their outstanding ecological, botanical, zoological and hydrological features.
The most accessible places to view the floodplains are Yellow Water, Mamukala, Iligadjarr, Ubirr and Bubba wetland.
Southern Hills and Basins
This landform is characterised by rugged strike ridges separated by alluvial flats. Its features can be easily observed from the top of Gunlom Falls and on the Yurmikmik walking tracks.
Estuaries and Tidal Flats
The majority of travel to Kakadu National Park is via the Arnhem Highway from Darwin using either self-drive vehicles or through organised coach tours. There are sealed roads from Darwin to the Park via the Arnhem Highway and from Katherine to the Park via the Kakadu Highway. The Bowali Visitor Centre near Jabiru is located 253 km from Darwin via the Arnhem Highway entrance. By road, you will need to allow around 3 hours travelling time from Darwin.
Tourism webpage: https://northernterritory.com/ https://nt.gov.au/leisure/parks-reserves/find-a-park-to-visit