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
Three signposted trails radiate from the Cullenagh car park, from a gentle family stroll to a serious hill walk. All are 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 Donovan Castle, 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 prominence has shaped both communications and local history. The summit now carries Cork’s primary local radio transmitter, beaming FM services like 54FM and RedFM across West Cork. Because the surrounding ground is so rough, the transmitter runs at higher power than most county sites, backed by relay stations in Macroom, Bantry, Clonakilty and Kinsale to cover the blackspots. Before the FM arrays it held an MMDS (Multipoint Microwave Distribution System) transmitter.
Under the modern kit lies a landscape full of prehistoric and medieval heritage. The trails pass several standing stones and stone circles, especially around Leitry, pointing to early settlement and ritual. Down in the valley, Castle Donovan, a partly ruined tower house heavily damaged by Cromwell’s troops in the 1640s, is a listed National Monument, 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. 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
For a stop after a walk, Aultaghreagh Cottage Garden sits on a hilltop just outside Dunmanway, open seasonally from May to September by appointment. The one-acre garden has over a thousand plant varieties, a woodland shade garden, a fish pond with a waterfall and historic stone features, runs on free entry with a charity donation, and looks back towards Nowen Hill and the Shehy range. The wider Dunmanway area has more heritage walks and quiet roads for 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.