If the "grey, mint guzzling, less physically active majority" actually produce "at least 84% of the National Park's income", their quiet enjoyment clearly forms a more important financial return than does that of the remaining 16% of noisy, polluting and, sometimes, highly inconsiderate speed boaters. I've suffered their oafish behaviour at sea, roaring by far too closely. It must be much worse on a lake, even one as large as Windermere.