Originally posted by us271934:

One idea you might consider is digging a channel inland a bit and build your dock/boathouse around it. The wave action diminishes the further inland you go. I had noticed a moat at a base near the sea had minimal water level changes when the nearby ocean was going bonkers. I dug a channel a few Karve lengths inland and the water level at the end had much reduced fluctuation during storms. People on the forum confirmed this 'feature'.
Digging a few test holes could give you some gauge of the effect.

Nice, will experiment later. I was able to move the boat out 4 meters or so. The bow is in swim depth at least. Made the shorter dock longer cause it looks more natural with piers on both sides the length of the boat. I only get 1 shaman or brute each night trying to get in around fence that goes into sea. So far they just sit there and growl on the rock.

Oh and I tried to destroy the boat 1st. Made sure it was 100% repair, clicked middle button same as for destroying lumber and nothing happened. Its late foe me, so that might be part of it. It should be alright. I'll back up the files before digging up the channel just in case I nacker something.

I'll just hang out until the next storm hits and see what the water level does before and after.

UPDATE:
https://steamcommunity.com/sharedfiles/filedetails/?id=2638143388

Dug its channel in about 10 meters. Don't have room for anymore. It had minor damage after a storm but looks like it could take 6 stormy days in a row if need be. May cover part of this at some point. Wish I didn't have to repair the dock like it is. It lasts a long time before it starts falling apart though. They could add creosote for docks and then its water proof for 600 days :D