The children had had an argument once about whether there was more grass in the world or more sand, and Roger said that of course there must be more sand because of under the sea; in every ocean all over the world there would be sand, if you looked deep down. But there could be grass too, argued Deborah, a waving grass, a grass that nobody had ever seen, and the colour of that ocean grass would be darker than any grass on the surface of the world, in fields or prairies or people's gardens in America. It would be taller than tress and it would move like corn in the wind. ("The Pool

Daphne du Maurier