Perfect for a picnic break!

Stopped off en-route from Scotland for a lunchtime walk and picnic. Lovely lakeside/woodland walk (25-30 minute circuit), with benches and picnic tables. Pay to park. Saturday afternoon visit: a fair number of people but not too busy. Visitor centre currently closed because of lockdown but toilets open. (Ice-cream van there too!) Midway between junctions 17 and 18, so off one and back on the other. Would highly recommend!