If you are planning to take your motorhome (or caravan or tent) down to London for the royal wedding in April, I have a suggestion for you: Book A Campsite Now!
The combination of a major royal wedding and a bank holiday weekend will undoubtedly up demand for all types of accommodation in and around London, so booking early is the only way to be sure of getting a space.
Here are a few links to campsites in and around London. The best-known is probably the Crystal Palace Caravan Club site, but there are a surprising number that are within an hour’s travel from London.
EDITED FOR TECHNICAL REASONS
If you do go, have a good time. If it isn’t your cup of tea, why not enjoy a quieter weekend somewhere else in the UK?