Croc country (considered to be typical crocodile habitat) begins at the Boyne River south of Gladstone, and extends northward, up the east coast and across Far North Queensland.
"The Mary River in Queensland is the furthest south they're generally found as residents," he said. "Whether there was one as far south as New South Wales, however, that really stretches credibility quite a lot, quite a few of these sightings have turned out to be something like a large monitor lizard.
The saltwater crocodile population in Australia is estimated at 100,000 to 200,000 adults. Its range extends from Broome, Western Australia through the entire Northern Territory coast all the way south to Rockhampton, Queensland.
Saltwater crocodiles live in rivers and freshwater swamps across the north of Australia — northern Western Australia and Queensland and all of the Northern Territory. They like to travel and can be found up to 100km inland and sometimes visit beaches in these areas.
In Queensland, Saltwater Crocodiles may be encountered in the sea or any coastal waterway north of Rockhampton. Individuals are occasionally seen as far south as the Mary River (Gympie).
Australia's Noosa Everglades is the only one in the world you can kayak as there are no crocodiles.
What is this? Some residents and officials were concerned that they might be breeding and spreading further south along the eastern coastline of Queensland. However, there has been no direct evidence found to support this. Crocodiles can swim, although not at great distances.
There are thought to be around 200,000 Saltwater Crocodiles in Australia, with the most found in the areas surrounding Darwin and the Mary River. Over the years, they have been hunted for their skins and have almost been brought to extinction on a number of occasions.
These frightening and fascinating animals live in the Northern part of Australia in a warm and tropical climate. You can find crocs along the north coast between Broome (Western Australia) and Rockhampton (QLD) and up to 200km inland.
Freshwater crocodiles are only found in Australia, inhabiting the freshwater rivers, lakes and 'billabongs' of northern Australia. Although they can tolerate saltwater, freshies are kept further upstream by the larger saltwater crocodiles.
Northern Territory crocodile expert Graham Webb, from Crocodylus Park, said he was puzzled by the discovery, as the water temperature of the Murray was too cold for freshwater crocs. Crocodiles' preferred body temperature is 30 to 33 degrees Celsius, which they manage using water, sun and shade.
The Adelaide River is well known for its high concentration of saltwater crocodiles, along with other wildlife including white-bellied sea eagles, whistling kites, freshwater crocodiles, bull sharks and black flying-fox. Its lower reaches form part of the Adelaide and Mary River Floodplains Important Bird Area.
No, The Murray River is too far south to have crocodiles and too far inland to have sharks. In fact there are no “nasties” in the river, so it's safe to swim in. We do recommend you wear a lifejacket while swimming, we can provide these for you on boarding.
No crocodiles and no deadly marine stingers. Enjoy the endless golden sand beaches, the magnificent estuaries, the unspoiled coastal rainforest, National & Marine parks encircling the Town of 1770/Agnes Water, or the view atop one of the most vantage point in the area.
Within the United States, the American crocodile's distribution is generally limited to the southern tip of Florida, though at least two have been found as far north as the Tampa Bay area.
However, there are no crocodiles in Brisbane. The general southward movement of Australia's crocodile movement has not yet reached the Queensland capital. Crocs are cold-blooded creatures, and the Brisbane winter, while mild by almost any human standard, is too cold for them.
"Crocodiles do not occur in Tasmania naturally and the only logical explanation I can see is that people could have had crocodiles in their private dwellings then released them into the wild as they got bigger," Mr Norton said.
Cassius, the 5.48m giant holds the Guinness World Record for being the largest croc currently in captivity. Housed on Green Island in Far North Queensland, he weighs more than one tonne and is believed to be more than 110 years old. The world record was previously held by Lolong in the Philippines.
Rest assured there are no snakes or crocodiles. We do have one poisonous spider (the Katipo) - sightings of which are about as common as that of the Yeti. The most dangerous creature you are likely to encounter is a grumpy possum.
The sprawling reserve has more than 2000 plant species and wildlife including saltwater crocodiles and turtles.
"Around the world, there are about 23 species … of crocodylians," Groh told Live Science. "Of these, the salties in Australia are the largest that exist in the world — only the Nile crocodile in Africa and the American alligator come close."
You'll find Crocodiles anywhere from Port Hedland in Western Australia all the way around the northern coast and back down just south of Brisbane. The further north you go the more common they are, but anywhere between Broome and Gladstone, they are relatively common.
It may be possible to find a crocodile in northern New South Wales, but it's unlikely. Crocodiles do stray from where they're supposed to live sometimes, they've even been spotted on Australia's Great Barrier Reef.
The Murray River is way too far south for saltwater crocodiles to go near. The water is too cold for them – it's the same reason there are no crocodiles in Sydney and no crocodiles in Brisbane.
Crocodiles are warm blooded and not suitable for the cold of the Blue Mountains. Why do people visit the Blue Mountains? They visit for the views, the bush walking and the cold.