Epsom Downs Racecourse is experiencing challenging weather conditions as revellers arrive for Derby Day, with rain and strong winds impacting the atmosphere. King Charles III and Queen Camilla are expected to attend after participating in a wedding in Gloucestershire, reviving a long-standing royal tradition at the event. The Derby, set to take place at 4 PM, boasts a prize pot of £1.25 million and will feature 14 horses racing over a distance of 1.5 miles. Attendance has been declining, with last year's figures at just over 22,000, compared to peaks of over 40,000 in the early 2000s. Celebrities such as Mary Berry and Jodie Kidd have arrived, but the weather has overshadowed the usual fashion spectacle. Epsom's general manager expressed enthusiasm for the royal presence, emphasizing its importance to the racecourse and the horseracing community. The event aims to provide joy and entertainment to millions, despite the adverse conditions.