River Bulbourne. Boxmoor, Hertfordshire, England, 05/05/2020
PS: River Bulbourne flows into River Gade, which flows into River Colne, which in turn flows into River Thames. (It may take a few turns in and out of the Grand Union Canal on the way!)
Date: 05/05/2020
Location: River Bulbourne, Boxmoor, Hertfordshire, UK
Photographer: Richard Keith Wolff