Driving from Belfast and the north
From Belfast, take the A24 (Ormeau-Saintfield Road) and follow the signs for Newcastle/Downpatrick. At the Carryduff roundabout, take the A7 for Downpatrick. You will pass through the villages of Saintfield and Crossgar. When you reach the roundabout at the outskirts of Downpatrick follow the signs for Clough/Newcastle (the A25). Make sure you make a right turn at the second set of traffic lights in the town centre into Market Street.
When in Market Street, go straight across at the traffic lights, and watch out for the Ulsterbus (Translink) station on your right on the edge of town. Just past the bus station there is a filling station on your left, and you will see a brown direction sign on the right hand side marked ‘Railway Museum.’ Turn right and the railway station is in front of you across the car park.
Driving from Newry and the south
If you are travelling from the south, the quickest route is the A25 road from Newry to Castlewellan. For a more scenic, but longer, drive around the coast and through the Mourne countryside follow the signs for the A2 road to Newcastle. From either of these towns follow the signs for Clough or Downpatrick.
At the Clough roundabout take the A25 Downpatrick road. As you approach Downpatrick, watch out for ASDA supermarket on the left. Just past this you will see a brown sign marked ‘Railway Museum’. Turn left and the railway station is right in front of you.