Portmarnock to Malahide

Portmarnock (Irish: Port Mearnóg) is a coastal suburban settlement in Fingal, Ireland, with significant beaches, a modest commercial core and inland residential estates, and two golf courses, including one of Ireland's best-known golf clubs. As of 2016, the population was 9,466, an increase on the Census 2011 figure of 9,285.

The Broadmeadow River (Irish: Abhainn Ghabhra) or Broad Meadow Water, is a river of County Meath and northern County Dublin, about 25 kilometres (16 mi) long. It opens into a wide estuary between Swords and Malahide, and reaches the open sea several kilometres downstream, north of Malahide village. One of the larger watercourses by volume in County Dublin, the Broadmeadow is a salmonid river, with several species of fish, including brown trout.

Portmarnock railway station (Irish: Stáisiún Phort Mearnóg) serves Portmarnock in County Dublin.