The fog envelops everything in a gray, ethereal mist. Moving through it constantly hides and reveals parts of the surroundings. One moment a tree or a building looms out of the fog, stark and clear against the gray backdrop. The next, it would be swallowed up again, as if it had never existed.
The fog seems to have a mind of its own, moving and swirling around in an almost sentient manner. It's both disorienting and exhilarating, like being lost in a surreal dream.