Due to the steepness and uneven surface of the hill there are usually a number of injuries, ranging from sprained ankles to broken bones and concussions. A first aid service is provided by the local St John Ambulance (Gloucester, Cheltenham and Stroud Divisions) at the bottom of the hill, with a volunteer rescue group on hand to carry down to them any casualties who do not end up at the bottom through gravity. A number of ambulance vehicles will attend the event, since there is invariably at least one and often several more injuries requiring hospital treatment. Cooper's Hill Cheese Rolling has been summarised as "twenty young men chase a cheese off a cliff and tumble 200 yards to the bottom, where they are scraped up by paramedics and packed off to hospital". The race of 2005 was delayed while the ambulances returned from the hospital, all of them having been required to transport casualties from previous races. Nevertheless, it was one of the most popular events in recent years, with many more participants than were able to run in the four races.