Board Thread:Naruto Discussions/@comment-26636534-20160527151459/@comment-27924662-20160527205552

Thekillman wrote: The world map is highly stylized, it shows no lakes (even though the Valley of the End itself has a lake). It shows no rivers either.

So yea, there simply is a big sea outside that isn't marked on the map. How many world map show river lakes etc?they only show sea,ocean and lands.so if there was a sea near amegakure they should have shown it.