Places of Interest nearby
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Napoleon envisioned setting up a cross-Channel optical telegraph on Cap Gris Nez to send messages across. This optical telegraph or semaphore ‘shows’ information by means of visual shapes or signals using shutters or beams.
The first semaphore of this line was installed on the cape in 1805.
The lighthouse of Cap Gris Nez is a reference point for your walk along the cliff coast of France.
Cap Gris-Nez is a cliff made of sedimentations laid down 150 million years ago (the jurassic period). You can see the grey colour of limestone, clay and chalk, and the yellow colour of sand and sand stone.
Linked themes: Geology
The cliffs of the Cap are the closest point of France to England. Dover is only 34 km away.