Dunsink Observatory is located about 8 kms northwest of Dublin city centre, in the suburb of Castleknock.
Tel: +353 (1) 4406656
GPS Our GPS location is +53° 23′ 12.30″, -6° 20′ 10.40″
By Bus : numbers 38 and 39) to Dunsink leave from Hawkins Street, off Burgh Quay on the south bank of the river Liffey. Get off at the bus stop after 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.