Australia? That would be a journey. I once mapped out a plan crossing Australia by traine but even that took several days....it is a very big place...
And for what it is worth, I have two close friends that have recently lost their sight. Yikes.
Do take good care of your eyes, don't rub them too hard and maybe even take those new.ish eyeball vitamins that I am currently taking. Going blind would just be the most horrific thing to me.
As noted I'm helping the one friend from cal tech to move into a facility where he can maneuver without sight. Damn!