I tried to get a picture as it went haring past me in a field of flint, but by the time I'd located it and raised my camera, it was long gone. It really did run at at least a hundred miles an hour.

The landslip-in-progress isn't quite as scary as it looks. The coast is quite sloping here, as a result of so many past landslips, so the worst that would happen would be that you'd surf rather alarmingly down the slope before coming to rest on the remains of last year's landslip. If the landslip was over a vertical cliff, I definitely wouldn't walk on it!