|Distance:||11.8 km (7.3 miles)|
|Meets:||N8, N27, N28, R609, R853|
The route starts as part of a one-way system either side of the Parnell Place bus station in the centre of Cork city. Southbound it runs down Clontarf Street and across Clontarf Bridge, onto Anglesea Street (passing the City Hall to the left) to reach Infirmary Road. The northbound R610 from here back to Parnell Place is longer running via South Terrace, George's Quay, and South Mall. The two-way route south-east of Infirmary Road continues through the suburbs and out towards Douglas. A fairly modern bypass of Douglas village centre ends at a roundabout junction with the R609, Rochestown Road, and the L2470, Maryborough Hill.
The R610 continues in a generally eastward direction along Rochestown Road, passing under the N28 – a limited GSJ gives access from the R610 to the northbound N28 northbound, and from the southbound N28 to the R610 – before we cross the city boundary and enter the area administered by Cork County Council. Our road now runs along the south shore of Lough Mahon, with countryside to our right. Curving southward we reach Passage West and, beyond it Glenbrook, from where the Passage West Ferry provides a link to the R624 and Cobh. Still curving gradually to our right to follow the shore, the R610 eventually ends at the conclusion of a westward run towards a junction with the N28, at a point some four road kilometres from the centre of the commuter town of Carrigaline.