[quote=@ClocktowerEchos]
Small note: most edible crops grow further inland naturally. You wouldn't see wheat growing naturally all that close to an ocean, on a lake, maybe.
[/quote]

True, but there is fishing. Plus, we would still need bodies of fresh water. Perhaps have a few of those, but this ocean would contain the only salt water. Perhaps we could have a small colony that adapts and is able to drink salt water that lives near there?