The first coronation in 70 years is to take place on Saturday morning, with King Charles III and the Queen Consort preparing for their historic carriage ride to Westminster Abbey, reports BBC.
Despite forecasts of rain, crowds have already begun to gather on the procession route.
There will be a huge security operation in central London, with 100 heads of state set to attend.
The Coronation ceremony, which will last almost two hours, will be seen first-hand by 2,300 guests, including Prince Harry, the Duke of Sussex, who arrived from the United States on Friday on a commercial flight.
It will be the first time since the release of Prince Harry's memoir that he will have been seen in public with his brother, Prince William, the Prince of Wales.
It is thought Prince Harry may fly back to the US a matter of hours after the ceremony to rejoin his wife Meghan.
Prince Charles became king of the United Kingdom and 14 other realms in September, when his mother Elizabeth died after 70 years on the throne.
Months of intense planning have gone into the coronation celebrations - the 40th to take place at Westminster Abbey since 1066.
Bd-pratidin English/Golam Rosul
