>>1108216I'm not sure it's as concrete or extensive a right as it is in some countries such as Sweden, where you can walk anywhere. There is an extensive network of often forgotten public footpaths though, which is so extensive it might as well mean you can roam anywhere. You can find local public foot path maps at your local council offices.
Walked the dog along a disused public footpath that lead me through two farms that from the outside looked like private land and got talking to a really old farmer for a hour an a half. He looked like he hadn't talked to anyone in years (wife died, kid left and rarely got in touch).The first farm i had to go around two huge padlocked gates and jump over a fence to get back on the path, the farmer said that the gates shouldn't be there and are illegal but that farmer doesn't want people roaming his land.