Search for 6 discarded camellia leaves on the path between the dock and the first bridge.
These are a swirling leaf particle effect, you may need to turn up your graphics to be able to see them.
Advance through Diaku Corral in search of Gattley.
First update just across first bridge ( -712, 31, -411 ) Copy/waypoint -711.92, 30.99, -410.60.
Next update just inside the gate to Diakaroo Bonanza ( -731, 62, -532 ) Copy/waypoint -731.22, 61.53, -532.25.
Gather Gattley's wrench after defeating the Joro siblings and their sister( -543, 62, -651 ) Copy/waypoint -542.95, 61.56, -650.52. Check Your Quest for updates! If you missed a discarded camellia leaves, you can jump down to the dock and get the update, then run through for the next two updates. If you are not on this step when the Joro's die, the wrench will not spawn, and you'll have to reset the zone and start again.
Defeat Vleecan Fele, Professor Gattley's captor, in Bossman's Redoubt ( -637, 61, -496 ) Copy/waypoint -637.37, 61.19, -496.36.