The party is continuing outside Buckingham Palace as thousands of people take part in the Platinum Jubilee Pageant.

Open-top buses decorated to represent each decade of Queen Elizabeth II’s 70-year reign have passed by the palace, where members of the queen’s family are watching, including Princes George and Louis and Princess Charlotte and many more of the queen’s grandchildren and great-grandchildren.

Sunday’s pageant is the grand finale to the queen’s four-day Platinum Jubilee celebrations. It is divided into four acts: “For Queen and Country,” represented by a military parade; “The Time of Our Lives,” celebrating innovation; “Let’s Celebrate,” a festival of music and dance; and “Happy and Glorious,” performances by “national treasures.”

The pageant will conclude with a performance by Ed Sheeran.

Prince Charles and his wife Camilla, Duchess of Cornwall, raised a toast Sunday at a "Big Jubilee Lunch" at the Oval Kennington, a cricket ground in London.

Thousands of jubilee lunches are being held across the U.K. and the Commonwealth this weekend in honor of Queen Elizabeth II's Platinum Jubilee.

Over 10 million people in the U.K. alone are expected to join lunches, according to the royal family's website.

The goal of the lunches is to "share friendship, food and fun," according to the website.

Among the celebrations was a jubilee lunch held on The Long Walk in Windsor, near where the queen is staying at Windsor Castle.

Elizabeth's son, Prince Edward, and his wife Sophie, Countess of Wessex, attended the lunch, which attempted to break the world record for the longest dinner table with nearly 500 tables.

A nearly 2-mile procession in the streets around Buckingham Palace is underway on the fourth and final day of Queen Elizabeth II’s Platinum Jubilee celebrations.

Thousands of people are taking part in the procession, known as the Jubilee Pageant, and thousands of people have also gathered on the streets to watch.

Among those watching the parade are members of the royal family, including Prince William and Kate, Duchess of Cambridge, and their three children, Princes George and Louis and Princess Charlotte.

Leading the procession is the Gold State Coach, a royal carriage that dates back to the 1700s.

The queen rode in the carriage during her 1953 coronation and silver and golden jubilees.

Elizabeth, 96, is not riding in the carriage in today’s procession, but viewers can see a hologram of her at her coronation projected onto the carriage.

According to its organizers, the Pageant combines “street arts, theatre, music, circus, carnival and costume to celebrate Her Majesty’s unwavering duty, love of the natural world and dedication to the Commonwealth.”

Princes George and Louis and Princess Charlotte, three of Queen Elizabeth II’s great-grandchildren, baked cupcakes to celebrate the queen’s Platinum Jubilee.

The siblings are seen in a video shared on Twitter baking cupcakes alongside their mom Kate, Duchess of Cambridge.

According to the video’s caption, the cupcakes are for a Platinum Jubilee street party taking place Sunday in Cardiff.

Kate and her husband, Prince William, brought George and Charlotte with them on a royal engagement Saturday in Cardiff. The family visited Cardiff Castle and met performers and crew taking part in a jubilee concert at the castle.

Queen Elizabeth II made a surprise appearance on the balcony of Buckingham Palace Sunday at the conclusion of the four-day celebration of her Platinum Jubilee.

The queen was joined on the balcony by her heirs, Princes Charles, William and George, as well as Camilla, Duchess of Cornwall, Kate, Duchess of Cambridge and Princess Charlotte and Prince Louis.

Elizabeth, dressed in a green coat, green hat and white gloves, stood and watched as thousands of members of the public sang "God Save the Queen."

Before departing the balcony, Elizabeth gave a royal wave.