There's a beautiful walk between Folkestone and Dover that somehow even people who live in Kent aren't aware of. It's especially good for geeky types as there i

There's a beautiful walk between Folkestone and Dover that somehow even people who live in Kent aren't aware of. It's especially good for geeky types as there is some lovely infrastructure to see and learn about. The railway snakes along the coastline, weaving in and out of the cliffs. You can walk below the railway or up on the cliff above it. There are signs of early attempts at a channel tunnel from the 1800s and, of course, the real channel tunnel. In particular Samphire Hoe which was created using the earth removed from the tunnel and now houses ventilation fans for the tunnel.