Periodically, on the way up, it cleared a bit, so we could see about 100ft.
Visibility was so bad at the summit, we actually walked by the summit cairn the first time and had to circle back guided by the GPS.
In the last hour on the way down it cleared up for real.
Given the poor visibility, having a GPS was essential. Here are the points we followed. We also had a backup GPS, since it could have been a real problem if our GPS had failed.
Google coordinates Kosciuzko walk start -36.494119, 148.287942 trail junction -36.48891, 148.283865 waypoint1 -36.477799, 148.276355 waypoint2 -36.46434,148.269789 Kosciuzko road junction -36.457135, 148.268516 summit -36.456300, 148.264050Webmaster