For the Four Waterfalls, you can park at the Gwaun Hepste or Cwm Porth car park (CF44 9JF). Gwaun Hepste is the biggest and main car park. Both car parks are pay and display, and parking spaces are limited, so I would recommend getting there early. Alternatively, you can park for free at the Comin y Rhos car park (SA11 5US). This car park is very small, but is the closest to the falls.