Otter swimming, hunting fish, in the River Severn in daylight.
Less than a mile downstream from Low Town, Bridgnorth.
The otter was swimming upstream. When it was on the surface it was marking position. It frequently dived, emerging a few yards upstream each time, usually with a fish in its mouth.
I watched it for about twenty minutes. In that time it had progressed perhaps thirty yards upstream. It was still there when I left because I was beginning to get cold.