Basically you start at the mine, and hover over the tile you are stand on, then click on by one on minimap, recording every tile you land on until you get to the bank.
private Position[] bankPath = {
new Position(x,y,0), new Position(x,y,0), new Position(x,y,0),
new Position(x,y,0), new Position(x,y,0), new Position(x,y,0),
new Position(x,y,0), new Position(x,y,0), new Position(x,y,0)
};
^(This goes where you define your variables, top of script)
Fill in the x and y coordinate, leave the 0 (that is Z but you don't need to change for this script.)
Then to activate the walker do:
getLocalWalker().walkPath(bankPath);