The dismantling of the "Jungle" migrant camp is like "D-Day" for the Port of Calais, its chief executive has said.
However, Jean-Marc Puissesseau has warned that the clearance would be a "waste of time" unless a police presence is maintained in the city to stop refugees and migrants who want to travel to the UK from gathering there again.
Speaking on BBC Radio 4's Today, Mr Puissesseau said: "I am a very, very happy man.
"It's for us really the D-Day.
"Because I will not say it was the war here but since two years (ago) we are living in constant stress and living (with) a lot of attacks on the highway to try to slow down the traffic and to try for the migrants to get into the lorries and so on."
Teenagers gathered at a makeshift church in the Calais 'jungle' just days after authorities declared the operation to clear the camp over.
Those still left after the demolishing of the 'Jungle' camp were seen wrapped in blankets as they prepared to sleep rough.
The UK's French ambassador, Sylvie Bermann said the destruction of the Calais 'Jungle' will encourage refugees to seek asylum in France.