The Tolka Valley parkrun begins and ends near the junction of St. Helena’s Road and Tolka Valley Road within the scenic Tolka Valley Park in Finglas. This engaging 5k course consists of three anticlockwise laps—one large 3km loop followed by two smaller 1km circuits—that guide participants along the tranquil banks of the River Tolka. The route offers refreshing views of the park’s vibrant wetlands, lush woodlands, and the local par-3 golf course. Runners enjoy a consistent surface run entirely on smooth tarmacadam paths, making it a reliable choice in all seasons. While the terrain is predominantly flat and fast, it features a few "sneaky" minor inclines that add a rewarding variety to the pace.