Held since 1966, the Notting Hill Carnival was originally a local affair for west London's homesick Caribbean community, and has evolved into Europe's biggest street party. 'Carnival' sets London on fire in a blaze of Caribbean spirit as extravagantly costumed dancers, calypso and soca musicians, giant sound systems and steel bands are joined by over a million revellers of all ages. Sunday is officially Children's Day, but there are loads of kids on both days enjoying the bright colours of the floats and the dancers' feathered costumes. Adults can shake their booty at dozens of stages: our favourites are Channel 1's booming dub, and the jazz reggae at Gaz's Rockin' Blues, but there are tunes for all tastes, from house to hip hop. It's a huge area and can get very crowded, so be prepared for an exhausting day out, but for anyone who loves a party 'Carnival' remains the absolute highlight of the London summer.