Event Volunteer – Middlesbrough Pretty Muddy 5k – 30th May 2026 You can make a big difference in just a few hours.  We’re looking for enthusiastic volunteers to support our next Cancer Research UK Pretty Muddy event in Middlesbrough, on the 30th May 2026. Whether you’re coming solo, bringing a friend or part of a larger group, your support means our event can run smoothly and raise money to fund lifesaving research. We’re looking for p…