If your on a beach with your toes just touching the water is the horizon (where the water meets the sky) always the same distance away?.or is it diffrent at diffrent times or places?
I agree with Wildwood the the distance will change due to the gravitational pull of the moon, however, as the moon pulls the water up in the middle of the sea (and so away from the shore) at LOW tide, the arc of water will make your horizon closer, and subsiquently the horizon will be farther away at HIGH tide when the moon releases it's pull on the water and the sea flattens