The Fog is a natural world entity found at the edges of the map in the Shipwrecked DLC. Entering the Fog will teleport the player to the opposite side of the map, and will cause the player to lose 15 .
When the player approaches the Fog, the character will make a comment to indicate the proximity. Once the character enters the fog control of the character will be lost, and the screen will fade out. Immediately after the screen will fade in to show the teleported character moving out of the fog. The control of the character will be regained when they completely exit the Fog.
A less dense version of the fog can also be found randomly on the Ocean during the first 2 segments of the day, and near Wrecks. These are just visual effects and have no functionality.
Due to loss of control when entering the Fog, Waves cannot be avoided, so caution is advised.