The first recorded release of pigs in Australia was made by Captain James Cook at Adventure Bay, Bruny Island in 1777. This was part of his policy of introducing animals and plants to newly discovered countries. He "carried them (a boar and sow) about a mile within the woods at the head of the bay and there left them by the side of a fresh water brook".
Since then and after more liberations pigs have spread throughout Australia and in some places are found in very large numbers.
On conways boars can be quite hard to hunt but very rewarding, a lot of the times we find them along rivers and lagoons or on or near carcasses.