Frustrated Jubilee revellers vented their anger at rail companies for failing to provide enough trains to get spectators into London, leaving children "crying" with disappointment.
Services into the capital were packed, with many passengers, including tearful children, unable to board overcrowded carriages.
Jeremy Bellamy, a Conservative councillor from Canterbury, said: "Amazed that South Eastern trains seem to have been taken by surprise by the Jubilee weekend."
Many took to Twitter to complain that a normal Sunday service appeared to be operating despite the fact that hundreds of thousands of people were planning to travel into London to watch the Thames Pageant.
Emma Bradley tweeted: "SW Trains really should have thought this through. Children literally crying cos can't get on the train at Norbiton, New Malden etc."
J Peak said: "London Midland Epic fail! If Jubilee Sunday is sign of how you'll run the Olympic service you deserve to lose the franchise."
Greater Anglia and First Capital Connect were also attracting criticism for apparently failing to lay on extra trains.