Sailing alone in the Australian Coral Sea. I'm starting my expedition to quite remote Islands

I am fascinated by remote islands. Uninhabited. Which you can only reach if you have a boat. These Pacific islands exist. Far out in the Australian Coral Sea. Visited by birds, occasionally turtles. But it takes courage to sail there. Especially because I'm sailing alone. No one is out there to help you. And I know little about the dangers. Nothing should go wrong here. So, I start exercising.