London to Delhi

Aerial view of England, France and the English Channel.

The full width of the English Channel from the air - on a clear day it is easy to see from one side to the other.

The white cliffs of Saint Valery en Caux, in Normandie on the French side of the Channel.

The English Channel with patchy cloud cover, and a trail of sediment from the Thames estuary visible in the water.

Geologic map of England, The Channel and Pays-de-Calais: notice the similarities in rock type either side of the Channel.

A ferry leaves a busy port off the French coast, one of hundreds that run every week.

The sheer face of the White Cliffs of Dover - the iconic symbol of Britain and homecoming.

The full width of the English Channel from the air - at the narrowest point it is only 34km across.

Satellite view of the English Channel, with the wakes from large commercial ships clearly visible.

Sea forts built during WWII for the coastal defence of the Thames Estuary.

Coastal observation towers, such as this, line the English South Coast as relics of WWII.

This cartoon: 'The laugh at the end of the tunnel' is a reminder of the cultural significance of re-joining England and France.

16th century map of Cornwall and the English Channel.

60 year old concrete coastal defences are stark reminders of the vigilant watches kept across the Channel during WWII.

Interior door of the Eurotunnel - safety is paramount at 45m below the sea.

Threads of interconnecting rail networks at the Eurotunnel entrance to the Channel Tunnel.

A Fort Walney searchlight emplacement, part of a vast network of defences on Walney Island.

Map of Eurostar route beneath the English Channel.

Road networks at the Eurotunnel - up to 41,000 vehicles are transported by Eurotunnel every week.

Truck emerging from Eurotunnel

The inside of the Eurotunnel, travelled through by 10 million people each year.

Cross section of Eurotunnel underneath the Channel

The white wake of ships crossing the narrow English Channel can be seen from a satellite.

17th century map of the English Channel and adjacent countries.

A light house sits on the White Cliffs of Dover - a crucial aid to navigation in the Channel's infamous fog.

Passenger ferries are contsantly crossing the English Channel in front of the White Cliffs of Dover.

19th century Royal Cruising Club chart showing the main lighthouses across the English Channel.

The Artemis, washed up onto the beach at Les Sables d'Olonne during storms in 2008.

P&O Stena Line on the English Channel, one of the major ferry companies operating daily services between Dover and mainland Europe.

18th century chart of the Channel between England and France.

Two enormous oil and gas containers navigate the channel between Dunkerque and Dover.