The coronation of King Charles III and his wife Camilla is set to take place in London in a ceremony today which will be attended by thousands of guests including foreign leaders, celebrities and members of the royal family. Despite forecasts of rain, crowds have already begun to gather on the procession route. There will also be gun salutes at Edinburgh and Stirling castles as millions of people across the UK and around the world celebrate. All the pageantry will be shown on big screens at Edinburgh’s Princes Street Gardens and Glasgow Cathedral. Hundreds of thousands of people will line the route as, around two hours later, the Royal couple return in a huge procession to Buckingham Palace. There will be a huge security operation in central London, with 100 heads of state set to attend.