Could still do with some more info. Are you planning to stop or is it just a sightseeing tour?
A couple of points though. The nearest Airfield to the lakes is Cark (if you are talking South lakes such as Windermere). Its about 16 miles from Bowness, is mainly a para drop site but welcomes GA.
Fuel, Blackpool is convenient for your route, but the landing fee is a bit pricey for just a fuel stop. Nice to track low up the coast from there and see the sights.
Watch Heysham, 2000ft restriction I think.
Enjoy the views, pretty spectacular.
LF