I'm in Essex, near tilbury docks.
So not far from the Thames estuary.
First 747 I saw low flying round here was a Qantas 747 one night, then other week a Cathay Pacific, and today a BA world Cargo 747-800. So flight routes must of been changed by ATC.
Lol I have the plane finder app on my phone so whenever a plane flies over I see what it is.
Normally Ryanair mainly who fly over here.
Bit dull as it was taken on my phone and a grey day out there today lol but you can get an idea how low it was.