Start: Park in Arrowtown's large car park by the river.
(S/E) Join the path alongside the river and start following it, going in the same direction as the water runs. The path is wide and also shared with cyclists. Continue along this path until you reach a footbridge.
(1) Cross it to change banks and, on the other side, continue downstream, taking the path closest to the riverside. The path sometimes diverges slightly from the river. Reach a new footbridge.
(2) Change banks again, this time heading upstream along the path back to Arrowtown and the car park (S/E).