P24 - The Longest Attended Day

P24 - The Longest Attended Day is a unique endurance running event held at Denbies Wine Estate in Dorking, Surrey. Participants run one mile every hour on the hour for 24 consecutive hours, covering a total of 24 miles on a mostly flat off-road trail through the scenic wine estate. The event takes place on the summer solstice weekend, offering a challenging yet social atmosphere with on-site camping (tents only), 24-hour toilet access, and daytime café services providing hot food and drinks.

Full chip timing is provided, and finishers receive a distinctive heavy finisher’s medal. A virtual version runs simultaneously, allowing wider participation. Visit the organization's website for the most recent information.