Less than most. Spent most of my life pretty far inland. Closest I'd know anything useful about is how to deal with the shit you might find out there.

[ He pokes idly at a vegetable that isn't, for once, a sliver of mystery green stuff rehydrated into something resembling a piece of paper that thought about a spring onion once. He's still thinking about the cooking thing, in truth. ]

A lot of it boils down to 'if you see a horse in the sea, that's weird and you shouldn't try to ride it', which seems like common sense.