Black tokens indicate underwater locations, while grey tokens are surface locations. Most of Oceanus' life is below its waves.
While referred to collectively as Oceanus, the Realm is actually composed of two seas which meet north of the Frostfell. The The Misty Sea on the west side of the Frostfell is named for the constant fog which hovers over its surface. It is directly beneath Auria.
The Sea of Light refers to the eastern sea. The name derives from the exceptionally-clear waters, which allows light to penetrate extraordinarily deeply, supporting life at a depth unheard-of in other oceans.
The Darkened Depths, on the other hand, refer to the deepest areas of the ocean, where the light cannot reach. The Darkened Depths are not a specific region, but a general term for the deepest parts of the sea floor.
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