There’s no denying that the ‘Fab Four’ have been busy bees as of late, stepping out for a series of high-profile appearances that included Remembrance Day services, state dinners, the Royal Variety Performance and special solo engagements. But Prince William, Duchess Kate, Prince Harry and Duchess Meghan have also carried out a series of private outings that have only been revealed after the fact, like their Royal Foundation dinner last week. This has piqued the curiosity of fans, who are wondering why their favourite royals are sneaking around.

While it may seem mysterious, there’s actually quite a logical reason behind the secrecy. According to HELLO!, these meetings don’t have a special angle or announcement to make and are just part of the young royals’ day-to-day schedules. In dedicating themselves to their royal work, the Duke and Duchess of Cambridge and Duke and Duchess of Sussex have full days of meetings, events and engagements, many of which aren’t relevant to the public. Sometimes they’re revealed on the Court Circular, which lists the family’s schedule up to eight weeks in advance, while others are kept under the radar.

Some, like Kate’s outing to University College London and Meghan’s visit to the Hubb Community Kitchen, both yesterday, happen as surprises to fans but are then shared with the public as they are happening. Others generally go undetected and aren’t photo opportunities, like Prince Harry’s covert trip to a roundtable discussion with young people from MAC UK in Euston yesterday, where youth violence in England’s capital was the topic of conversation.

Fans of the family were delighted to see the Duke and Duchess of Cambridge out at BBC Broadcasting House on Nov. 15 to help fight cyberbullying, while the Duke and Duchess of Sussex snuck over to the BBC Studioworks just 20 minutes away to sit in on a Mental Health Innovation workshop. Last week, Harry and Meghan also attended a private dinner at Buckingham Palace with the African Parks Network, of which Prince Harry is president. And back in October, Duchess Kate kept an event she hosted for her ‘Early Years’ initiative at Kensington Palace under wraps as she is still likely hammering out the details of her brand-new endeavour.

Prince Harry will make a very public trip as he heads off on another solo adventure near the end of November, this time jetting off to Zambia, where he’ll stop by Bongo Hive, the country’s first technology and innovation hub. He’ll also attend a reception to celebrate the relations between the United Kingdom and Zambia and visit the Burma Barracks to attend an event commemorating WWI and WWII Zambian veterans – a cause very close to his heart.