In reply to Hans:
Plenty of options in the lakes but the obvious ones are:
Grasmere, layby on A591 just after the roundabout, larger layby on A591 on the left after the village, or for a few quid in the Travellers Rest Inn carpark
Keswick, Brundholme Road near Spooney Green lane
Ambleside, Under Loughrigg Road opposite the park or parking on the right after the lights at Waterhead
Coniston, Walna Scar road or the school at weekend for a few quid
There is a few other options but i'm keeping those under my hat
Post edited at 14:36