The capital is once again holding its annual New Year's Eve fireworks display.
One of the largest in the country, the display is organised by the mayor of London and is free to attend. Many of the fireworks are launched from boats on the River Thames and it is a spectacular sight – a must for those staying in central London hotels over the New Year period.
It is expected that the display will be particularly thrilling this year as the city marks the recent holding of the 2012 Olympic Games and the end of the Queen's Diamond Jubilee celebrations.
Boris Johnson, the mayor of London, explained: "Our New Year's Eve fireworks will cap a triumphant year for London. As we welcomed the world to the magnificent celebrations for the Queen's Diamond Jubilee and the glorious success of the Olympic and Paralympic Games, London was at its very best.
"From the thrilling sporting action to the breath-taking cultural celebrations, it has been an unforgettable year…as we go into 2013 with a spectacular fireworks display I hope we can build on that energy and enthusiasm."
For those able to get out of bed the next day after all the partying, then the New Year's Day parade is a great way to mark the start of 2013.
Held for the past 26 years, the parade takes place in the centre of the city and involves thousands of performers.
The procession will begin at around 12pm at Piccadilly and will pass through a number of famous London streets to arrive in Parliament Street at around 3pm.
Organisers are estimating that close to 10,000 people will take part in the event, which will be watched by nearly 500,000 spectators.