why does the fog disappear for months and show up for months

that's what I wanna know

I love the fog. You can sometimes see the enemy, then silence as both try to spot each other. Then you hear cannons shooting, and cannonballs splashing in the water near your ship... now you know more than your enemy... you know where they are, but they have no idea where you are...

Oh that spooky spooky feeling, doing the ballet of battle in the thick fog. Few games can achieve that same feeling of worry and excitement.

@da-and-ma Then defend, you get to choose the location.