@Cap10_Bull@
Yes you do have a diving suit.
I've added the instructions to the adventure and tips for when outside a flipped Columbia.

Wow – that’s what I call customer service. Great, I’ll test the remodel as soon as I’m rescued:
I towed a yacht into a harbor at night and got stuck in the harbor basin. A good opportunity to try a winch and I’m capsized with it. Now I’m sitting on the bottom-side of the ship, besieged by a shark.
I know Columbia has Powered inversion assist, but I don’t know how to operate it. And I don’t have a diving suit on. And, there is the shark

@Cap10_Bull
Had some time to day so made that deeper Columbia. I havent spent the hours testing like I normally do, just some quick drive arounds. Added 2 blocks of depth. The "wet deck" gained about 1-2 blocks of height which keeps it out of the water way more often.

BBW Columbia Gen3
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2867725953

Should mention that when Stormworks first came out there wasn't any rope anchors on the docks. So unless you installed a mod to actually deliver rescues to the hospital you either beached, anchored or prayed for your boat to be there. How well the boat beached was really important. Its also why the anchor is on the stern of Columbia. You can drive up onto a beach. As well as run-pushing you can also swim out the anchor, let it sink, activate it then winch to pull Columbia back into the water.

One could add 2 ish blocks of depth to Columbia for a little more displacement providing you don't also add more gear or fuel.

Thank you for your answer Brygun. I don't think I worded my question correctly (poor English skills), but I will definitely look at the Yukon when I have earned the necessary money (and I do not have the DLC yet)
I thought the Columbia is too low in the water because some water always sloshes into the cockpit, but it seems to be intentional.
(So far I haven't seen any really high waves.)

For Cap10_Bull@
Short answer:
Yes, use the Yukon.
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2822448270

Expanded answer:
Columbia as river-coastal craft has a shallow draft to be able to easily go where other boats can't. he shallow nature also makes it easy to "park" the boat on a beach, go ashore for an extended time, and then manually push Columbia back into the water (by running at alternating corners).
Efforts to make a deeper version of Columbia lead to a much larger arctic voyager in the Yukon. A bit of feature creep happened. Part of that comes from getting deeper meant higher displacement. The power-mass ratio soon needing to up size from Columbia's 2 x medium engines to Yukon's 2 x large engines. That in turn needed a larger engine room and an easily arctic capable fuel capacity.

As a complete newcomer to the game, I was looking for a good starter ship. And after a few unsuccessful attempts, I found this jewel. So far, I probably understand at most 15% of all the functions of this ship, but it is already my absolute favorite. Love at first sight.
But could it be a little deep in the water?

Happy to see it cross into triple digit subscribers. The "Adventures and tips" is for everyone to post in to discuss things they do. Part of modern gaming is the communities we develop. Love to hear your stories, suggestions and requests.

I've now added inversion recovery.

There is an orange circuit breaker near the maps that turns on the system to rotate the boat onto about its side. In that position you can restart the main engines and continue recovery. A toggle changes the direction of rotation. The toggle can't be seen from the helm seat though.