Azshara Golden Pearl Farming Guide (Classic - WoTLK)
One of two locations in the game for you to farm for Golden Pearls is at the nagas in Azshara. In the central portion of Azshara you'll find the Ruins of Eldarath which is infested with nagas as is the coastline just east of these ruins. Warning though, there is a large cliff separating these two locations so you won't be able to go back and forth between them easily.
The Ruins of Eldarath has enemies that are much more clustered together than the coastline to the east. You'll also find more herbs/mines in the Ruins of Eldarath camp, since not as much spawns on the coast. Depending on your class and which you'd prefer, that'll help you determine which of the two locations to hunt in.
Keep in mind that the nagas themselves do not drop Golden Pearls, the precious pearl we're after has a small chance of dropping out of the Big-Mouth Clam that these Nagas drop. Each clam you open will contain a Zesty Clam Meat in addition to having a chance to drop a Black Pearl, Iridescent Pearl, Small Lustrous Pearl and of course the Golden Pearl as a rare item.
Aside from the Golden Pearl, there is not much of value that you can find at this location. The nagas do not drop Runecloth nor do they drop any other valuable items which you can sell aside from the typical greens/grays and other junk. Your biggest steady money maker while farming here will be gathering professions, if you got them.
Miners will find Rich Thorium, Small Thorium and Mithril Ore throughout the Ruins of Eldarath area. In my experience not many people farm Rich Thorium in Azshara so you'll have a pretty good chance of finding some here while you're farming!
Herbalists will find Dreamfoil, Mountain Silversage, Sungrass, Purple Lotus and other high level herbs here. For the most part, you won't make much money farming this location unless you have a gathering profession or get lucky enough to find a Golden Pearl.
Items of Interest
Golden Pearl
Thorium Ore
Mithril Ore
High Level Herbs