L64 The Channel Tunnel
The Channel Tunnel        ----The world's longest undersea tunnel
  What is Undersea tunnel?
An undersea tunnel is a tunnel which is partly or wholly constructed under a body of water.    Advantages:Tunneling will generate soil that has been excavated[ekskvetid] and this can be used to create new land, as was done with the soil of the Channel Tunnel.Travelling through a tunnel is significantly quicker and won't be influence during adverse [dv:s] weather