The Ants - 27:63
Who guides you in the darkness of the land and the sea? Who sends the winds as good tidings before His Mercy? Is there another god besides Allah? Allah is far greater than those whom they associate partners.
Detail of the darkness of the sea:
The Light/24:40
Or it is like the darkness in the midst of a vast sea covered by wave after wave with a dense mist. Darkness piled on top of each other. When a man stretches out his hand, he can hardly see it. He whom Allah has deprived of light has no light at all.