I learned some things today:
You can't get drinking water from Sugarloaf reservoir, but you can from the nearby CFA fire station.
If you lose a water bottle full of energy drink, you'll bonk at some point.
One Tree Hill isn't as steep as it looks on Google maps.
Kings Road is very interesting.
My GPS can lead you astray at times and other times you should just listen to what it is telling you, knowing when those times are is the key.