The Porterstown parkrun begins and ends near the main car park and St. Mochta's Church within the vibrant Porterstown Park in Castleknock. This high-spirited 5k course consists of three clockwise laps around the park’s outer perimeter, guiding participants past several soccer pitches. The terrain is run entirely on smooth, permanent tarmac paths, ensuring a consistent and reliable surface throughout the year, having flat and undulating sections.