rudestuff used the word "only" not me!
This is a UK based forum however; I know that there were recommendations for Low Level VFR Transit Corridors within the Adelaide CTR. Details of those routes are more likely to be found in the Australian Aeronautical Documentation than on a Pilots Rumour Network based 17000 miles away, especially when a high proportion of readers will have no idea where Parafield or Murray Bridge are.
The UK is part of Europe and Brexit will have no bearing on that