That came as a surprise: A fluorescent yellow post-it attracting attention at a sign board for walkers. It came from a guy I had met that morning in my hostel in Katoomba and left earlier to do the same hike that day to Ruined Castle. Being a single track, we were sure I would meet him on my way back, but he changed his mind to take another side track. And he managed to let me know because he was carrying pen and post-its. Luckily I had a pen and calendar in my bag pack of which I could spare a page.

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