South African adventurer Mike Horn arrived in Sydney on Monday on a four-year voyage around the world, looking for two young Australians to join his multinational crew.

Horn is using crew from every continent on his 100,000 km odyssey aboard the 35-meter ketch Pangaea, which means "one world".

"I want to give young people the opportunity to see the beauty of the planet so they can conserve it for future generations," said the sailor-cum-eco-warrior, who is initiating conservation projects along the way.

"I need influential kids who can one day go out and change the world. I cannot reunite the continents but I can reunite people," he said.

Horn started his epic voyage in Argentina last October.

He has already visited the South Pole, South Africa and New Zealand on a journey that will eventually take him to the North Pole, crossing all the continents and oceans.

The first phase of the voyage open to Australians aged 13-20 is in India next January.

Source: Xinhua