North of Dublin near Dundalk, the Ravensale Forest has some of the best singletrack in Ireland.
Dundalk is about halfway between Dublin and Belfast on the coast. To reach the mountain biking trailhead from Dundalk, head north on the road towards Newry. Continue 3 miles past the roundabout and turn right at the Sprotsmans Restaurant. At the T-junction, veer left and use the car park with the wall in the middle.
Overall, Ravensale Forest is the 7th most popular mountain bike trail of all 14 mountain biking rides in Ireland.