An unexpected sight on the River Derwant.

 Up until 1975, on the River Derwent, just south of Whatstandwell, canoeists would be met by this unusual sight.

Alvin the Alligator sunbathing on a rock, or sometimes chomping down on a stray sheep. He had been released into the river as a Rag Week Prank by Zoology Students at Matlock University, in 1958.

Initially, there were some attempts to recapture him, but after the disappearance of a couple of gypsy shoemakers, the locals sort of adopted him as an unofficial vermin-catcher. Nice.

Bonus -