In order to fully explore Hallowfall for the achievement, which is require for the bigger Explore Khaz Algar achievement inThe War Within, you will need to find The Undersea area which can be a bit tricky. Here is how and where to find The Undersea for the Explore Hallowfall achievement inThe War Within.
Where to find the Undersea in Hallowfall
You can find the Undersea and complete the part of your task for the Explore Hallowfall achievement by skyriding over the small inlet of an ocean that comes in between the Priory of the Sacred Flame and the Veneration Grounds on the west side of Hallowfall.
Many players are having trouble finishing the Explore Hallowfall achievement inWorld of Warcraft: The War Withinbecause they are missing the task that requires them to find The Undersea. If you look at the map, you’ll see a giant swatch of empty space to the west of the Hallowfall zone that looks like a big body of water, perhaps even an ocean.
For some reason, skyriding over the actual vast expanse of the ocean to the west—which yes, will build fatigue—does not seem to actually credit players with finding The Undersea. You’ll need to specifically fly around in the area that’s attached to the Hallowfall zone, which separates the land between Mereldar, the Veneration Grounds, and the Priory of the Sacred Flame.
Once you reach that area, The Undersea location should be discovered thus completing your Explore Hallowfall achievement. If this is the last zone you need to fully explore, you’ll also complete the Explore Khaz Algar achievement inThe War Within.
