Mourne Mountains
Area of Outstanding Natural Beauty
About Mourne Mountains
The Mourne Mountains are a granite mountain range in County Down, Northern Ireland, and the highest mountain range in Ulster. Rising dramatically from the Irish Sea, they form one of the most iconic landscapes in Ireland and inspired C.S. Lewis's Chronicles of Narnia.
The range contains 12 peaks over 2,000 feet, with Slieve Donard being the highest at 2,796 feet (852 metres). The mountains are famous for their granite dry stone walls, known as the Mourne Wall, which runs for 22 miles across the peaks and was built between 1904-1922 to enclose the water catchment area for Silent Valley Reservoir.
Designated as an Area of Outstanding Natural Beauty, the Mournes offer some of Ireland's finest hiking and climbing opportunities, with trails ranging from gentle walks to challenging mountain ascents. The landscape inspired Percy French's famous song "Where the Mountains of Mourne Sweep Down to the Sea."
Essential Information
Location
County Down, Northern Ireland
Access
24/7 Open Access
Multiple entry points available
Admission
Free
Parking charges may apply at some locations
Duration
Half day to full day depending on route
Things to Do
Slieve Donard Hike
Conquer Northern Ireland's highest peak at 2,796 feet. The trail from Donard Park offers stunning views of the Irish Sea and surrounding mountains.
Silent Valley Reservoir
Visit this scenic reservoir surrounded by the Mourne Mountains. Walking trails and visitor centre with exhibitions about the area's history.
Mourne Wall Walk
Follow sections of the famous 22-mile granite wall built by hand over 18 years to enclose the water catchment area.
Practical Tips
Getting There
Multiple access points from Newcastle, Kilkeel, and Silent Valley. Parking available at Donard Park and Silent Valley (charges apply).
What to Wear
Proper hiking boots essential. Waterproof clothing and layers recommended. Weather can change quickly in the mountains.
Best Time to Visit
Spring and summer offer the best weather. Early morning starts recommended for longer hikes. Check weather conditions before heading out.
Safety
Tell someone your route and expected return time. Carry map, compass, and emergency supplies. Mountain rescue services available if needed.
Navigation
Download offline maps as mobile signal can be poor. OS Maps app recommended. Many waymarked trails available for all abilities.
Leave No Trace
Respect the environment and other visitors. Stay on marked paths, take all litter home, and don't disturb wildlife or livestock.