Today Queen Elizabeth II's Diamond Jubilee Central Weekend festivities continue with the Thames Diamond Jubilee Pageant. After yesterday's Diamond Jubilee Derby, the queen is today accompanied by Prince William, Kate Middleton, Prince Harry, and more members of the royal family on the royal barge, the Spirit of Chartwell. The queen and her troop are at the center of a flotilla with more than 1,000 boats floating down the River Thames. This massive flotilla — one of the largest ever to gather on the river — includes rowboats, working boats, passenger boats, and boats filled with members of the armed forces and police. Pippa Middleton is joining her brother, James, and her parents on a vessel, too. See the royals celebrate the queen's 60-year reign with the Thames Diamond Jubilee Pageant now!