Dredging is the only thing I can think of that checks all those boxes, or even a few OSVs.
Don’t expect to just look out the window as you do deep sea, you actually have to work at 99% of other places you’ll go. Even as a mate… ABs won’t just be your minions doing the hard labor anymore. Most won’t be able to make the switch seeing as you’ll make the same or less money, while having to physically work a lot more.
Jnx, I’ve been a dredgeboater since 1995, and can attest that the transition from deep sea Mate to dredge Mate is extremely difficult. I’ve only seen a couple guys in all those years that successfully made the transition. Tug & supply boat guys do OK, but the first time your 3 abreast in the Houston Ship Channel the deep sea guys have a melt down.
Wheeler, McFarland, Essayons and Yaquina will all advance your unlimited oceans license.
Now, the limited tonnage hopper dredges out of Wilmington district, I wouldn’t recommend those for license advancement.
And of course, all the commercial fleet unlimited tonnage hopper dredges will advance your unlimited oceans license. Obviously, you should only take these jobs if you like getting close to stuff,(ships, buoys, jetties, piers, etc) and working in heavy traffic, and think you can learn to handle your own watch doing that stuff at 0200 on a dark night by yourself.