An East Lothian cyclist has spoken of the moment spotted an adder out on a ride in the Lammermuir Hills by Dunbar.
David Lunman, says that he has been cycling in the area for twenty years and had only heard stories of the snakes but had never actually seen one himself.
Adders are the only venomous snakes in Scotland and although their bite is not deadly to humans - however it can still be extremely painful.