In 1623, Carstenszoon was commissioned by the Dutch East India Company to lead an expedition to the southern coast of New Guinea and beyond, to follow up the reports of land sighted further south in the 1606 voyages of Willem Janszoon in the Duyfken.
Setting sail from Ambon in the Dutch East Indies with two ships, the yacht Pera (captained by Carstenszoon) and Arnhem (captained by Willem Joosten van Colster),[2] the ships travelled along the south coast of New Guinea, then headed south to Cape York Peninsula and the Gulf of Carpentaria.
[2] Landing in search of fresh water for his stores, Carstenszoon encountered a party of the local indigenous Australian inhabitants.
On 8 May 1623, Carstenszoon and his crew fought a skirmish with 200 Aboriginal people at the mouth of a small river near Cape Duyfken (named after Janszoon's vessel which had earlier visited the region) and landed at the Pennefather River.
Carstenszoon sighted the glaciers on the peak of the mountain in 1623 and called it Sneebergh; he was ridiculed in Europe when he said he had seen snow near the equator.