[citation needed] or I call BS. There's no legal right in a civilized country to see X by going into someone's property, regardless of X.
Actually, yes there is. From times when road systems were not as good as they are today, and it was literally impossible to leave your own land without traversing someone else's, there developed laws of "rights of way". These are mostly an anachronism today, but do sometimes have to be respected. When I was a young lad, there was an old woman living at the back end of our farm, in a 3 room cottage with an open hearth, no electricity and no running water, half a mile in off the road. She had the legal right to cross our land to get to to the road, and also an old well on our land. As well as the obvious reaction of not really caring if some old woman walks across a field, there were other implications to her right of access. We used to keep sheep as well as cattle; as anyone who ever worked with sheep will know, rams will charge anyone who is not looking at them, and then stand there pretending it wasn't them when you pick yourself up off the ground. Happened me loads, no big deal, but for a fragile 80 year old woman there could be all sorts of legal implications.
Anyway, like I said, it's mostly anachronistic, and dwindles in importance as land consolidation continues. My father now owns all the land that could be used as any reasonable excuse to demand a right of way across that big field.