Few were surprised by William and Kate's decision to break with tradition and not hold the christening in Buckingham Palace as has previously been the case for royal christenings.
The couple have made it clear they are not sticklers for tradition and their informality has helped portray a more modern, relevant royal family in austerity-hit Britain.
The christening will be the first time in over 100 years that four generations of royals are photographed together, with a picture of Queen Elizabeth, her son and heir Prince Charles, Prince William and Prince George to be released after the event.
Royal officials have released few details before the christening, allowing only one photographer and one TV crew inside the palace. Intense speculation has focused on the guest list and whether or not baby George will wear a replica of the gown used by Queen Victoria's eldest daughter in 1841 and worn by many royals since.
Celebrity portrait photographer Jason Bell will take the official pictures of the event, while bookmaker William Hill expected William and Kate to opt for friends as the godparents for their first child and skip the royal tradition of choosing family or other royals.
Despite the christening being held behind locked gates, royal fans are still planning to descend on St James' Palace to soak up the atmosphere and look out for Prince George.
"He will have a lovely christening dress on and I want to see him with his eyes open," says Margaret Tyler, a royal enthusiast and memorabilia collector.