Saint Illtyd's Walk is a 64-mile-long (103 km) waymarked long-distance footpath in South Wales. It runs from Pembrey Country Park, west of Burry Port, through rural eastern Carmarthenshire and Neath Port Talbot to end at Margam Country Park, south of Port Talbot. The walk is named after Illtyd (or Illtud), a late-fifth / early-sixth century Welsh saint.