Prince Harry

Now that Kate Middleton has officially begun her maternity leave, she can focus her time on relaxing with Prince William and preparing for her baby's arrival. With that in mind, we're taking a look at the royal family's best off-duty moments — from slipping into bikinis on exotic vacations to hitting the polo field with their relatives and pals. Click through to see how Kate, William, Prince Harry, and the rest of the royals let loose when they aren't making official appearances.

With Kate Middleton's anticipated due date approaching, we're diving into all the details of what to look forward to in the royal baby's first year. Taking the monarch's traditions and Prince William's upbringing into account, we've compiled a short guide filled with the fun milestones, special dates, and adorable photo ops we may be seeing in the coming months. As we await the birth of the royal baby, get excited with a glimpse into the future heir's first year!

Prince William and Prince Harry took part in a friendly competition when they played against each other in a charity game at the International Audi Polo Match in Tetbury, England, today. The match fell on the same day as the Cartier Queen's Cup finals, which were attended by Queen Elizabeth II and Princess Beatrice. The royal brothers' game came just 24 hours after they donned their dress uniforms to attend the Trooping the Colour parade in London on Saturday. They were joined by the entire royal family (minus Prince Philip, who is recovering in a hospital) for the occasion, which serves as a belated public birthday celebration for the queen. Kate Middleton made her final public appearance at the event, where she wore a pink Alexander McQueen coat, fueling speculation that she is pregnant with a baby girl.

Kate Middleton made what many believe will be her very last public appearance in London yesterday when she attended the Trooping the Colour parade. She wore a pale pink Alexander McQueen coat as she rode alongside Camilla, Duchess of Cornwall, and Prince Harry at the annual event that serves as a belated public celebration of Queen Elizabeth II's birthday. Prince William and Prince Charles did not ride with Kate's group as they were taking part in the military ceremony alongside Anne, Princess Royal. Prince William is the Colonel of the Irish Guards while Charles is the Colonel of the Welsh Guards and Anne is the Colonel of the Blues and Royals, so they all rode in the ceremony on horseback. Later, the whole group met up, along with Princesses Beatrice and Eugenie and other royals, to look out from the balcony at Buckingham Palace. Notably absent was Prince Philip, Duke of Edinburgh, who is still recovering in the hospital after undergoing surgery. Princes Harry and William paid their grandfather a visit at the hospital yesterday, fueling speculation that he was on the mend.

The Duchess of Cambridge's visit to the Trooping the Colour comes just two days after she made her final solo appearance on Thursday in Southampton. She was on hand to christen a Princess Cruises ship, which, interesting enough, Princess Diana also did in 1984. Be sure to check out all of Kate Middleton's official appearances while pregnant, and don't forget to weigh in on the royal baby's name before Kate gives birth in July!

Kate Middleton put her growing baby bump on display when she attended a service celebration for the queen's 60th coronation anniversary in London today. Kate wore a nude Jenny Packham dress and matching coat, as well as her trusty L.K.Bennett heels, as she entered Westminster Abbey alongside Prince William and Prince Harry, who met up again after attending a bachelor party together in London on Saturday night. While the queen's actual 60th anniversary was on Sunday, the royal family decided to celebrate that day with a small private ceremony and save the public service for today. However, the 60th anniversary hasn't been without public fanfare, as England has been celebrating the queen's Diamond Jubilee since February 2012.

Following the queen's celebration, Prince Harry broke from the rest of the royals to unveil a plaque stationed outside Westminster Abbey, which commemorates William and Kate's royal wedding. Additionally, today may mark one of Kate's last public engagements before she gives birth in July, as it was recently reported that Kate Middleton will go on maternity leave on June 14. Her last solo event will take place on June 13, when she will christen a cruise ship.

Prince William met up with Prince Harry for a night on the town at the Tonteria nightclub in London on Saturday. The royal brothers were reportedly out celebrating a bachelor party for their friend Thomas van Straubenzee, who is engaged to Lady Melissa Percy, the youngest daughter of the Duke of Northumberland. The two are due to marry on June 22 at her family's estate, Alnwick Castle, which Harry Potter fans may recognize as the setting for Hogwarts. Thomas has close ties to Harry and William and served as an usher at William's wedding to Kate Middleton.

The brothers had the celebratory night out after Harry attended a charity gala for Walking With the Wounded on Thursday. Harry, William, and Kate Middleton have all been ramping up their public appearances in recent months, but that will soon come to an end for pregnant Kate. According to reports, Kate Middleton will go on maternity leave and put her official duties on hold after she attends a boat christening on June 13, nearly one month ahead of her expected due date in July.

Prince Harry got into a tux to attend the Walking With the Wounded gala dinner in London yesterday. He has been a longtime supporter of the Walking With the Wounded charity organization, which supports the training and education of wounded servicemen and women. Harry, Kate Middleton, and Prince William have all been big patrons of the charity, and Harry even announced back in April that he will take part in the group's trek to the South Pole in November to help raise additional funds. Harry's charity support came ahead of the queen's news that she will continue with her planned visit to the Woolwich barracks today. The visit has a special meaning, as the barracks are where Drummer Lee Rigby was housed before he was killed in the tragic Woolwich attacks on May 22. The queen's appearance was already planned before the tragedy took place.

As for Harry, he has been pumping up his royal duties alongside Kate and William. Prince Harry recently visited the US for a week-long official tour and he opened a new Help For Heroes recovery center alongside his brother on May 20.