Willem Janszoon captained the first recorded European landing on the Australian continent in 1606, sailing from Bantam, Java, in the Duyfken. As an employee of the Dutch East India Company ( or VOC), Janszoon had been instructed to explore the coast of New Guinea in search of economic opportunities. He had originally arrived in the Dutch East Indies from the Netherlands in 1598, and became an officer of the VOC on its establishment in 1602.
In 1606, he sailed from Bantam to the south coast of New Guinea, and continued down what he thought was a southern extension of that coast, but was in fact the western coast of the Cape York Peninsula of northern Queensland. He travelled south as far as Cape Keerweer, where he battled with the local Aboriginal people and several of his men were killed. As a consequence, he was obliged to retrace his route up the coast towards Cape York and then returned to Banda.
Janszoon did not detect the existence of the Torres Strait, which separates Australia and New Guinea. Unknown to the Dutch, the Spanish or Portuguese explorer Luis Váez de Torres, working for the Spanish Crown, sailed through the strait only four months later. However, Torres did not report seeing the coast of a major landmass to his south and is therefore presumed not to have seen Australia. Because the two separate observations of Janszoon and Torres were not matched, Dutch maps did not include the strait until after James Cook's 1770 passage through it, while early Spanish maps showed the coast of New Guinea correctly, but omitted Australia.
Overall, his voyage was not immediately recognized as significant at the time, as the Dutch East India Company was primarily interested in finding a faster route to the Spice Islands. However, Janszoon's voyage paved the way for further exploration of the Australian continent by the Dutch and other European powers.
Voyage
Janszoon travelled to the Dutch East Indies in 1598 for the Oude compagnies and became an officer of the Dutch East India Company ( (VOC) in Dutch) when it was established in 1602. After two trips back to the Netherlands, he returned to the East Indies for the third time in 1603 as captain of all the Duyfken. In 1605, he was at Banda in the Banda Islands, when—according to an account given to Abel Jansen Tasman, issued in Batavia on 29 January 1644—he was ordered by VOC President Jan Willemsz Verschoor to explore the coast of New Guinea. In September 1605, he left for Bantam in west Java—which the VOC had established as its first permanent trading in 1603—so that the Duyfken could be fitted out and supplied for its voyage.
On 18 November 1605, the Duyfken sailed from Bantam to the coast of western New Guinea. Although all records of the voyage have been lost, Janszoon's departure was reported by Captain John Saris. He recorded that on 18 November 1605 "a small Dutch pinnace departed here for the discovery of the land called New Guinea, which, it is said, may yield a great amount of wealth".
No original logs or charts of Janszoon's voyage have been located and it is not known when or how they were lost. Nevertheless, a copy was apparently made in about 1670 from Janszoon's map of his expedition, which was sold to the Austrian National Library in Vienna in 1737. It can be deduced from this map that Janszoon then sailed to Ambon (the headquarters of the VOC), Banda, the Kai Islands, the Aru Islands and Deyong Point on the coast of Papua.
After exploring the coast of Papua the Duyfken rounded Vals Point and crossed the eastern end of the Arafura Sea—without seeing the Torres Strait—into the Gulf of Carpentaria, and on 26 February 1606 made landfall at a river on the western shore of Cape York Peninsula in Queensland, near the modern town of Weipa. Janszoon named the river , but it is now known as the Pennefather River. This is the first recorded European landfall on the Australian continent. He proceeded over Albatross Bay to Archer Bay, the confluence of the Archer and the Watson Rivers, which he named () and then on to Dugally River, which he named the ().
Turnback
According to the VOC's instructions to Tasman (1644), Janszoon and his crew travelled along of coast, from 5° south to 13° 45' south, but found
He found the land to be swampy and infertile, forcing the explorers eventually to give up and return to Bantam due to their lack of "provisions and other necessaries". Nevertheless, it appears that the killing of some of his men on various shore expeditions was the main reason for their return—he turned back where his party had its greatest conflict with Aboriginal people, which he subsequently called Cape Keerweer, Dutch for "Cape Turnback".