Bubble trail along the River Wharfe downstream from the Strid at Bolton Abbey

Yesterday I visited lovely Bolton Abbey for the first time in many years. The Strid is a section of the river Wharfe where the huge volume of water rushes through a narrow, rocky gap. Although the Strid is dramatic and definitely worthy of photos, I was actually more drawn to this section, just downstream from it, where the river gradually widens again. The frothy bubbles produced by the force of the water above form a white trail down the centre of the river.

Camera/lens settings: ISO 200, f/5.6, 1/100s, 17mm, hand held