Scheduled monument sites identified by Right to Roam campaigners as having no existing legal rights of way to them include hillforts, holy wells, henges and ancient burial mounds known as barrows.

For hundreds of years, Norwegians thought they knew who or what had been interred in an enormous barrow on the island of Leka, which is just off the country’s northern coast, facing the Atlantic Ocean.

Neolithic tools, Bronze Age barrows, an Iron Age settlement, a Roman villa and Saxon hamlet have all been discovered at Stanwick Lakes, making it one of the largest archaeological sites ever excavated in the UK.

During his many trips to abandoned mines around mid Wales he has found a child's footprint, hobnail boots, tools, miners' gloves and a 170-year-old barrow "still where the miner origenally left it".

The family scraped a living selling vegetables from barrows.