Getting Here: Dunsink Observatory is located about 8 kms northwest of Dublin city centre, in the suburb of Castleknock. Note if coming by bus or train, there is a 3 km walk up Dunsink Lane.
By Bus : (numbers 38, 38A and 38B, 39, 39A) to Dunsink leave from O’Connell Street. Get off at bus stop number 1808 (Navan Road/Peck’s Lane) near the Auburn Avenue/New Dunsink Lane roundabout (Travel Lodge is visible on the right) on the Navan Road, cross over to New Dunsink Lane and follow it for the next two miles past Elm Green Golf Club.
By Train: take the commuter line from Dublin Pearse St./Connolly towards Maynooth, getting off at Navan Road Parkway station. Walk to the overpass (not over it), turn right onto Navan Road, then right at 2nd traffic lights, just past the Travelodge up onto Dunsink Lane. Follow the road for the next two miles past Elm Green Golf Club.
By Bicycle: From city centre, one of two routes:
(1) Cycle through the Phoenix Park, out the Castleknock Gate, straight on, and turn right onto Auburn Avenue. Go straight through the roundabout and Navan Road traffic lights, and continue up Dunsink Lane to the end of the road.
(2) Follow the Royal Canal Cycleway and leave it on the city-side of the M50 near the Travelodge. Continue up Dunsink Lane to the end of the road.