Start with flying to the small pond on the Elemental Plateau. If you see the Crashing Wave-Spirits, you are in the correct location if you see the Crashing Wave-Spirits. Make sure that you have Find Fish turned on and begin looking for nodes. The nodes you want to find the most are 'Pure Water' nodes, as these contain wow gold Motes of Water. However, also fish in the 'Bluefish School' and 'Mudfish School' nodes. These are the only three types of nodes you will encounter on your route.

After you fish all of the nodes in the pond by the Elemental Plateau, fly south into Skysong Lake. You should be just south of the Throne of the Elements. Go clockwise around the edge of the lake, stopping and fishing for any node you see as you pass by.

And then you go around the entire lake, head south past Garadar and over the band of rivers. Turn southwest towards Halaa (you should be flying over the rivers), and fish at the nodes you pass by.

When you reach Halaa, fly west to Lake Sunspring. Just as Skysong Lake, fly clockwise around the edge of the lake, stopping and fishing for any node you see as you pass by.

Once you fish all the nodes there, fly west past Halaa and search again for nodes in the band of rivers. Fly northeast back towards Skysong Lake and make another trip around its edge.

Finally, fly north to the pond on the Elemental Plateau. Rinse and repeat this route about 4 or 5 times per hour. The time will depend on if you use a regular or epic flying mount and the amount of competition.