Just like in the photo below from when King Charles returned to Buckingham Palace after the Queen's death, the crowds will again be gathering en mass for the Coronation and related events. The date has been set for Saturday, 6 May and King Charles III will be crowned alongside his Queen Consort Camilla in Westminster Abbey. Many Heads of State and important foreign dignitaries will be on hand, together with absolute masses of tourists and visitors to the capital, so it's something to take into account when making plans during this time period. In addition, Monday, 8 May will be an additional bank holiday, which may affect opening times and traffic as many use the opportunity of a long weekend to escape. Additionally, access to Westminster Abbey and Parliament Square will surely be restricted in the weeks preceding the event for security reasons and due to the set-up necessary for it. Roads will be closed and there will be increased police presence during that time period. Should you plan on visiting London then, it will surely be an exciting and historic time to experience it, but it may also be a very trying time necessitating more patience than usual.
Please do double-check opening times, changes to public transport schedules, and access for vehicles and pedestrians to where you need to go. And watch this space for updates, as I will provide links to important information as soon as they are shared with the public!