He turned away and when he got waist deep in the water, stopped walking and fell forward to swim. Naoki kept where he could see Lee every other stroke as they went out and the sea floor beneath them slowly dropped away and then suddenly became much deeper, falling out of the light Naoki gave off.

When he reached the approximate area of the reef he stopped to tread water and turn to look at Lee. "Don't push yourself to stay down too long, okay?"