Board Thread:Episode Discussion/@comment-4141313-20181110034633/@comment-24032889-20181111214703

BlizzardDragon wrote: Fairly certain the Domain of Light is where the Spring Vault was located. Haven Academy was just built on top of it. It would be a decent place to put a Kingdom close to, but I can't say for sure. While the Domain of Light did have a "Tree of Life island on a vast pool of water", and the Spring Vault had a "Tree of Life" thing going on, I can't say for certain.

The Domain of Darkness is such a vast place (as seen in establishing shots of "Salem's Domain" especially in V3 finale and V4 premiere. I think the Domain of Light would be equally as vast, and it would be very in-your-face that it is the Domain when you see it. Now that the heroes have seen it via Jinn's story, they will know the Light Domain when they see it.