Watch out for Camden Catacombs/Rat Hole on TV tonight and possibly next week too.
And if you have no interest in the 'catacombs', there's apparently a scene where Peter Darley, Chairman of Camden Railway Heritage Trust, and Michael Portillo disappear in a boat into a dark subterranean canal basin together. So that's got to be worth it
BBC iPlayer - Great British Railway Journeys: Series 5: London Euston to Cheddington
And if you have no interest in the 'catacombs', there's apparently a scene where Peter Darley, Chairman of Camden Railway Heritage Trust, and Michael Portillo disappear in a boat into a dark subterranean canal basin together. So that's got to be worth it
BBC iPlayer - Great British Railway Journeys: Series 5: London Euston to Cheddington