More than half a million people flocked to the annual Notting Hill Carnival to enjoy what was a mainly trouble-free event.
Police said more than 500,000 people descended on west London's streets for the final day of Europe's biggest street festival.
Scotland Yard said 68 arrests had been made, though not all were necessarily within the event area.
Among the arrests, 24 were for drug offences, 10 were for theft and eight for public order offences.
British Transport Police made 11 carnival-related arrests at stations across London.
Organisers said more than 50,000 performers were involved in the event, traditionally the busiest day of carnival.
A parade of 84 floats complete with flamboyantly-dressed performers made its way through Notting Hill along a route of 3.5 miles.
There were also 15 steel bands and 41 sound systems.
Professor Chris Mullard, chairman of London Notting Hill Carnival Limited, said: "It's going very well. It's a very special day. This year has been perhaps the best I've been to and I've been coming for 42 years.
"People are giving something of themselves this year. It's not just a spectacle, people are participating and engaging in carnival themselves."
