Note: This guide is not meant for power-leveling purposes. Rather, it is meant to show a player the most efficient way to complete all quests available for a particular zone. If you know of a better order or method to accomplish this, your input is welcome (in fact, greatly desired). For major changes, feel free to edit, but make a note in the talk page as to your reasoning.
Alliance Questing Guide (LVL 10-20)
Darkshore is an Alliance-aligned zone designed for young night elf adventurers, and has only Alliance quests. The main questing hub is the village of Auberdine, which also houses a flight path and a dock with boats to Stormwind Harbour and Stormwind, Darnassus, and Azuremyst Isle. Be sure to reach at least level 10 before coming to Darkshore, as the initial quests are mostly around level 12.
Before you leave
Before heading to Darkshore, there are a few quests you can pick up for a little extra XP. Note that these quests only apply to night elves.
Talk to the nearby hippogryph master to receive [10] Flight to Auberdine, then go ahead and fly over to Darkshore.
Speak with Laird to get the final quest, [10] Return to Nessa, and fly back to Rut'theran to complete it. Unlike most hippogryph flights, these are free, so there is really nothing to keep you from getting this extra XP.
Return to Auberdine and turn in [13] Washed Ashore, and pick up the next quest in the chain.
Head out to the ocean near Auberdine and find the dea turtle remains for the Washed Ashore quest, killing threshers as you go.
Return to Auberdine and turn in [14] Washed Ashore (2). This will allow you to get all the other sea turtle and sea creature quests in Darkshore.
Head north along the coast, killing threshers as you go. Once you have all 3 Thresher Eyes, head to Buzzbox 411 shown here. Turn in the quest and get the next in the chain.
On the beach nearby is a washed up sea creature. You can loot it to receive [13] Beached Sea Turtle (1).
Directly off the coast from the turtle and the buzzbox are the two sunken ships for the quest [17] Deep Ocean, Vast Sea. Be cautious attempting this quest at lower levels, as there are many murlocs all around and they tend to swarm.
Return to Auberdine, killing moonstalkers for their fangs and striders for their meats (if you happen to be a cook). When you reach the town, turn in:
Head out of Auberdine and follow the road north. Bashal'Aran will be the ruins to your right. Enter and find the night elf spirit within the blue glow on top of the hill, and get the next quest in the series ( [12] Bashal'Aran (2))
Kill grell until you collect enough earings, then return to Asterion to get the next quest.
Locate and defeat Anaya Dawnrunner and take her pendant to complete [16] For Love Eternal (This may be too difficult if you are level 12 or below. If so, return to complete this quest later or get a friend to help.)
There are a total of five of these additional Beached Sea Creature/Turtle quests; two north of Auberdine and three south. Three of these are Beached Sea Creatures (which look like decomposed Threshadons), and the remainder are Beached Sea Turtles.