The only problem with concrete hulls is the collision insurance and how hard it is to find marinas that will allow them.
Concrete hulls tend to be heavy, lots of momentum, hard to stop, hard on docks and other boats.

I am glad he was found instead of lost.
I like them mentioning the wet suit. To bad he had been unable to shelter effectively or make a fire.
There is a reason it is called the wet coast.
They get a lot of rain.
That coast is a forager's paradise too.
Especially if you like mussels.