A new report from the National Trust reveals how how our coast has changed over the last 50 years. Tom Heap asks if we've become better or worse at protecting the nation's prime asset.

He joins John Whittow who led a team of students to survey the coast in 1965 and compares his findings with a brand new study from Leicester University. Has the rapid urbanisation of the 1960s continued or has the tide been turned? What new threats are on the horizon?

Producer: Alasdair Cross.