The Woolwich car ferry takes just a few minutes to cross the Thames. Not far from the Thames Barrier. Either side of the river there is a lot of development around here. I had gone in search of buildings and docklands that sadly no longer exist. The Woolwich car ferry takes just a few minutes to cross the Thames. Not far from the Thames Barrier. Either side of the river there is a lot of development around here. I had gone in search of buildings and docklands that sadly no longer exist.