One of the many times that I stopped on my ride yesterday to take a picture of the view, I glanced down and saw a snake.
(Near Sennen.)
I took a picture but I was leaning over the bike at the time.
It didn't seem to be moving so I put my bike against the fence nearby so I could crouch down for a better angle.
Unfortunately that was enough to send it slithering away fast.
This is a crop of the picture I took. Sadly there is litter in the undergrowth.
From googling, I think it's an adder and it's the first time I've seen one in the wild.
View attachment 423807