A lot of people worry about having to describe places, but there is no need to worry at all. What you have to do is see the place where this part of the story is happening, in your mind, as if you were there yourself. By the docks, you would see the shapes of the houses and sheds, and the stone or wood they were built of, and seagulls and boats and machines, and the paving you were walking on. At the picnic, you would see the grass and the insects and the shapes of the trees and the hills, and exactly where each person was sitting round the food. Then you simply write what happens. You don’t need to describe. It will come over as you tell it.
— Diana Wynne Jones, “Some Hints on Writing” (via delirious-bitter-gardens)