Not frequently visited due to the danger of zombie attacks, the coast is a treacherous place. It's hard to escape zombies, however you can't leave survivors shipwrecked on rocks for the zoms to feast on can you?
There are many other small townships trying to survive in the zombie hoarde. New Canton stands on a hill is the nearest of such settlements. There is also McMullins military air base, and of course the rest of the wilderlands.