Nothing

... and only the edge of the land on the horizon.
Distance 27 miles.

But the environment is really nothing

This shot was taken from the mast of a sailing ship.

I'll try to put him in the competition LANDSCAPE/SEASCAPE PHOTOGRAPHY AND ART CONTEST WEEK #041
. . . may be . . .

Your monitor may distort the gradient.
For better viewing, the picture should be downloaded.