Try this from the walkthrough:
From the map pull back and turn right around the corner.
Turn around and see the circle water well. We want to go across based on the map.
Go forward and see that the water is down. Turn left and fill this circle well by turning the wheel counterclockwise.
Now cross the bridge.
Now we're in #2 in the map.
Save your game before you start out - that way, if you get lost or make an error you can go back and replay from that point.