In this final of four films documenting the voyage of Distant Drummer from Cornwall to the Essex coast we get a wave from a seal, sail in the wake of William the Conqueror, get the green light at Dover and park DD next to a Norman castle. We also walk through through the channel tunnel, explore Folkestone, dodge several ferries and enjoy a whistlestop at Ramsgate before heading out across the shallow, shifting sands of the Thames estuary. We sail up the Blackwater and paint our faces with local mud to celebrate the completion of our epic voyage.