seanery
Waves and spray, duh... not much else to see where there's nothin' but salt water from one horizon to da other! :P
In Lewis Carrol's hilarious "Hunting Of The Snark" poem, da "only knew how to navigate by tinkling his bell" captain was using a "map of da ocean" which contained nuthin' but "seanery" (i.e., just showing open water over da whole of da chart --- "Other maps are such SHAPES with their ISLANDS and CAPES!"); it's true dat da crew loved it because it was super-easy for their dim-witted brains to understand, but said "perfect and absolute blank" chart wasn't much good as far as being usable to actually plan a course for the ship to follow.
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