Thousands more partygoers are expected to head to the second and final day of the Notting Hill Carnival.
Monday will mark the Grand Finale of the west London event's 50th anniversary, which has this year hosted 60 bands and 38 sound systems.
On Sunday, families gathered in fancy dress and face paint to watch the parades dedicated especially to children.
Simo Lagnawi, from Morocco, attracted a large crowd as he performed along the streets with his band Gnawa London.
He said: "The origin of our music is in slavery. It's very powerful. We go everywhere we can to play our music and show what it's about.
"We always have a great time wherever we play."
But it was still a day of hard work for the emergency services as the London Ambulance Service said it had treated a total of 411 patients and taken 74 to hospital.
They include a man who was left fighting for his life following one of four reported knife attacks.
Scotland Yard said it had arrested 105 people over the same time for a variety of alleged offences.
These included four alleged sexual offences, 74 drugs offences, 24 counts of possession of offensive weapons, nine counts of actual bodily harm, two of grievous bodily harm, two alleged thefts and nine counts of public disorder.
Officers also seized more than 150 canisters of nitrous oxide - with a street value of over £2,000 - from Wormington Road, Kensington and Chelsea.
Metropolitan Police licensing officers also seized over 500 cans of lager from a man engaged in illegal street trading in Westbourne Park Road. The man was selling the drinks out of a wheelie bin.
There were no arrests but both investigations have been referred to Trading Standards.
A heavy police presence will continue into Monday as the Met has introduced advanced security measures, including a facial recognition system.