So i'm not sure how far seen exactly works, but I was thinking of another way of using it.
Say you didn't want to take the population out of production or blacksmithing
Far, seen say it lasts twelve hours.I have no idea
But at the end of that time you would get a guaranteed six land.
Half of the duration of the spell, you would get back inland but only at the end of the spell. Just a thought. Or maybe that could be a new spell?