The VFR map southwest of YSSY at a close zoom level about 8nm contains a strange text message:
Do not litter or use sunscreen, both damage the ecosystem
Where on earth does this originate?
Hi,
From OpenStreetMap, from where we get place names. Is there no village by that name? 
Regards,
Stephen
Heheh, no. There’s no place at that location. It’s forest.
Looking at OSM I can’t see anything there just east of Heathcote. It seems to be directly between Heathcote and Mount Ball. There’s several walking tracks there which lead to Karloo pond - I wonder if there’s a map note on that point or something but I can’t see it to save my life in OSM editor.
Ironically, the karloo walking track page on the NSW government page says to bring sunscreen…