What is Boris Johnson’s Channel Bridge idea and how far is it from Dover to Calais?
Boris Johnson is said to have told aides it is 'ridiculous' two big economies are linked only by a single rail tunnel

THE Foreign Secretary was reported to have a plan to connect the UK and France.
Boris Johnson's idea to build a bridge between the two countries came to light in January 2018.
What is the Channel Bridge?
The idea of a ground-breaking bridge between France and the UK was said to have been raised within the Foreign Office.
Boris Johnson is said to have told aides it is "ridiculous" two big economies are linked only by a single rail tunnel.
A proposal is believed to have been suggested at an Anglo French summit in Sandhurst on January 18.
The Foreign Secretary said on Twitter he was "pleased" Britain and France were "establishing a panel of experts to look at major projects together".
He added: "Our economic success depends on good infrastructure and good connections.
"Should the Channel Tunnel be just a first step?"
How far is it between Dover and Calais?
The shortest distance between Dover and Calais is 33.3km, or 20.7 miles.
This is measured from the South Foreland, northeast of Dover to Cap Gris Nez, a cape near Calais.
How can people get from Dover to Calais currently?
By car or foot, or even bicycle - which involves a ferry journey - it takes about an hour-and-a-half.
Taking your car onto the Channel Tunnel takes one hour and 37 minutes.
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Some hardy souls have even swum the Channel, which takes a long time.
The gruelling challenge is often completed for charity and requires plenty of training.
But determined souls can swim across in ten to twenty hours.