Simple outdoor sketching.
This 37 minute piece on You Tube talks you through making a simple sketch in situ, the recommended equipment and the basics of how to establish initially a quick sketch. This is followed by showing the development of working into it with sepia, and finally developing a watercolour. Although the sepia and watercolour are demonstrated in the artists studio, they should be achievable outside also.
I hope it proves useful information for those considering sketching outdoors.