Touring Northern Ireland in a Week

You might decide to visit the Marble Arch Caves or Florence Court in the morning or drive straight on. Take the N34 south and cross the border into the Republic of Ireland. A look at the round tower in Clones and at the market town of Monaghan are a good idea - as is stocking up on petrol for the lower price. From Monaghan take the N12/A3 to Armagh, the "Cathedral City". After visiting one (or indeed both) cathedrals hit the A3 and then the M1 to bring you back to Belfast. Note that the next day is optional depending on your schedule - you might want to take the A26 straight to Belfast International Airport and stay nearby.