Overview
Nowen Hill (Irish: Cnoc na nAbhann, ‘hill of the rivers’) rises to 535.2 metres just north-west of Dunmanway in County Cork. The highest point in the immediate area and a recognised Marilyn, it sits in the West Cork Mountains, its summit marked by a modest cairn on a stony bank with unbroken 360-degree views across the Shehy Mountains, the Mealagh Valley and the distant water of Bantry Bay. The landscape feels old and untouched, but the height has long made the hill a communications point, with FM transmitters broadcasting across the peninsula.
Walking routes
One thing worth knowing first: of the three waymarked routes from Cullenagh, the 23km circuit is the big one and the other two stay lower and gentler. If it’s the summit and the views you’re after and you don’t want a full day of it, the quickest line is a separate 2.8-mile (4.5 km) out-and-back from Garrown to the east – about 1.5 to 2 hours, roughly 250 m of climb, on stony paths that turn boggy after rain.
The Cullenagh routes are all free, and they share quiet country roads for much of their length, which makes them good for cycling too.
Walk 1: the Summit Circuit (hard) Distance: 23km | Time: 5–7 hours The flagship route, for experienced walkers and cyclists. From the car park it cuts through mixed forestry to Farnanes crossroads, where a solitary standing stone marks an ancient burial site, then climbs to Barraboy, a name likely from barrbhuidhe (‘yellow summit’), where the ground opens to wide views over the Mealagh Valley and Bantry Bay. Dropping into the valley, the route crosses Mealagh Bridge and follows the road past the ruins of Castle Donovan, a 16th-century O’Donovan tower house, then loops back through the townland of Leitry, passing more standing stones and stone circles, to finish at Cullenagh Lake.
Walk 2: the Coolkelure Loop (moderate) Distance: 9km | Time: 2.5–3 hours Entirely on tarmac country roads, good for families, casual walkers and road cyclists. It winds through the settlement of Coolkelure, framed by thick rhododendron hedges and Coolkelure House, passes St Edmund’s Church with its colourful stained glass, and runs alongside Cullenagh Lake. The gentle gradient makes it an easy way to take in the local heritage.
Walk 3: the Forest and Marsh Trail (easy) Distance: 3km | Time: 0.5–1 hour A short loop over forest tracks and low marshland, crossing Annes Bridge. It misses the summit views of the longer routes but gives a quiet taste of the hill’s surroundings. Waterproof footwear is worth it, as the marsh can be damp and uneven.
History and transmission
Nowen Hill’s height has long made it a communications point. The summit carries the area’s main FM transmitters – among them 96FM, C103, RedFM and 4FM – with relay stations at Macroom, Bantry, Clonakilty and Kinsale filling the gaps behind the hills. Before the FM arrays it held an MMDS (Multipoint Microwave Distribution System) transmitter.
Under the modern kit lies older ground. The trails pass several standing stones and stone circles, thickest around Leitry, pointing to early settlement and ritual. Down in the valley stands Castle Donovan, a partly ruined 16th-century O’Donovan tower house, its weathered walls a sharp contrast to the green pasture around it.
Practical information
Nowen Hill is open year-round, free, with no set hours. The Cullenagh car park has plenty of free space for cars and larger vehicles, with clear signage for all three trailheads; there is also a smaller forestry entrance at Barrboy with room for two or three cars. The transmitter facilities are operational and closed to the public, but the summit cairn and the ridge are open on foot.
- Maps and navigation: Discovery Map 85 covers the area. The routes are well marked, but mobile signal can be patchy in the valleys, so carry an offline map or a paper copy.
- Footwear and gear: the terrain runs from tarmac to uneven forest track and marsh. Sturdy boots are essential for Walk 1 and waterproof shoes for Walk 3. Carry water, a basic first-aid kit, and check the forecast.
- Safety: hill-walking carries risk. Conditions on the exposed ridge change quickly, especially in winter, so tell someone your route and expected return time, particularly on the 23km circuit.
Nearby
Down in the valley below the summit stands Castle Donovan, the O’Donovan tower house the long circuit passes; it’s an easy add-on if you drive the Mealagh Valley road. Dunmanway itself has more waymarked hill walks – the Yew Tree Hill and Pipe Hill loops among them – and quiet back roads that suit cycling.
If you mean to take on the full circuit, start early to beat the afternoon winds that sweep the ridge, and leave time to photograph the transmitter array against the valley below.