Tower Bridge was raised in salute on Friday lunchtime as the vessel that carried the coffin of Sir Winston Churchill along the Thames in 1965 made the same journey 50 years later.
Spectators gathered on bridges and both riverbanks to watch the MV Havengore make its way upstream from Tower Bridge.
Tower Bridge was raised by Rodney Croft, a retired surgeon and author of Churchill's Final Farewell: The State and Private Funeral of Winston Churchill.
This year the flotilla continued past Westminster Bridge to the Houses of Parliament where a memorial service was held on the deck of the Havengore before a wreath was placed on the river.
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