- Fixes "The Bored Cartographer" achievement
This achievement is still pretty picky and sections that appear mapped may not be mapped quite enough for the achievement to register. Look out for parts of the shoreline that are near the edge of two exposed regions - even if you can't see any fog there may be just a faint hint of fog that would prevent it from registering.
You don't need to worry about any outlying islands to get this achievement - I have confirmed that it only counts the mainland coastline. You do have to be careful of any inlets connected to the Ocean, as some of those are counted even quite some distance from what I would consider the Ocean.
In particular the river North of the Mountain range North of Ruin Site B needs to be mapped as far inland as it goes and all the way to the Ocean, and the body of water that almost cuts off the Polaris island needs to be mapped. The body of water between the Desert and Western land mass also needs to be mapped, but only a short distance from the Ocean. On the other hand, The river that leads to Tau does not need to be mapped.