ITV News correspondent Rupert Evelyn reports
Britain's coastline has changed shape after weeks of bad weather battered the island, with rocks having fallen on the Dorset coast.
A team of geologists and engineers have to survey the new shape of the coastline and the quickest way to do that is by helicopter.
One of the RAF helicopter pilots said it was unusual to be working in a crisis this close to home.
Flood water remains across large swathes of the South West and shows no sign of retreating.
It may still take several weeks to see the extent of the damage from the floods, with most of the damage happening beneath the surface of the water.