The Thames: Britain's Great River with Tony Robinson: The Thames with Tony Robinson - Lifeblood of London

Reaching central London, the actor boards an industrial working ship on the Thames, learning it is a route not without risks as ships must squeeze under bridges at high tide and avoid running aground at low tide, before getting a bird's-eye view of the river from the Shard. Tony then visits the East End of London, reflecting on his teenage years working on the docks, and ends his journey in the Thames Estuary