Overview
The River Dun – known locally as the Glendun River (Irish: Abhann Duinne, “brown river”) – is a short but striking watercourse in County Antrim, Northern Ireland. Its name derives from the rich brown hue given by peat bogs on the slopes of Slievenanee on the Antrim Plateau, where the river springs just a few hundred metres from the source of the River Bush. From its upland origins the Dun carves a swift, acidic channel through the glen of Glendun, one of the nine famed Glens of Antrim, before reaching the sea at the picturesque harbour village of Cushendun.
History & Background
The river’s natural character has shaped human activity for millennia. Archaeological evidence shows that the Cushendun harbour area was a landing point for travellers between Ireland and Scotland as far back as 9,000 years ago. In the 19th century, the river was spanned by the Glendun Viaduct – a stone‑arched bridge locally nicknamed the “Big Bridge”. Constructed between 1834 and 1839 by labourers from County Monaghan and County Donegal, the viaduct remains a striking example of early railway engineering and a beloved historic landmark for walkers and photographers alike.
What to See & Do
Angling
The River Dun is a haven for anglers seeking a quiet, low‑pressure fishery. Its naturally acidic water supports a modest population of brown trout, typically under one pound, offering a gentle challenge for fly‑fishers. From July onward, sea trout and Atlantic salmon make their way upstream to spawn, while eels are also present throughout the year. The river’s clear, peaty flow provides a unique backdrop for a day on the water.
Walking & Scenic Exploration
Cushendun serves as the gateway to two well‑marked circular walks that showcase the river’s scenery:
- Cushendun Long Walk – a 1.9 km perimeter route that weaves along paved roads, grassy banks, gravel tracks and a plastic‑grid surface, delivering a varied riverside experience.
- Cushendun Short Walk – a compact loop that still offers river views and access to the viaduct. Both routes are sign‑posted from the National Trust car‑park on Bay Head Road and provide opportunities to photograph the viaduct, the brown‑tinted water, and the surrounding glen.
Heritage & Architecture
Beyond the viaduct, the village of Cushendun itself is a conservation area designed in 1912 by Sir Clough Williams‑Ellis at the request of Baron Cushendun. Its Cornish‑style white‑washed cottages, the neo‑Georgian Glenmona House, and the historic harbour combine to give visitors a sense of early‑20th‑century planned village architecture set against a dramatic coastal landscape.
Photography & Wildlife
The river’s peat‑stained waters and the dramatic stone arches of the viaduct make the site a favourite for landscape photographers, especially in autumn when the surrounding foliage turns gold. Early morning light often creates mist over the water, adding atmosphere to long‑exposure shots. Wildlife enthusiasts may spot otters, kingfishers and dippers along the banks, while the river itself supports brown trout, sea trout, Atlantic salmon and eels.
Practical Information
The River Dun is freely accessible and does not charge an entry fee. Visitors can park at the National Trust Carpark (Bay Head Road, Cushendun, BT44 0PH); parking is free and includes disabled‑accessible toilets. The carpark is the starting point for the long and short walks and provides easy access to the viaduct and riverbank.
| Facility | Details |
|---|---|
| Parking | Free, National Trust car‑park, Bay Head Road |
| Toilets | Disabled‑friendly facilities available |
| Accessibility | Wheelchair‑accessible paths on the short walk; the long walk includes mixed surfaces (gravel, grass, plastic grid) |
| Angling | No licence required for resident anglers; non‑residents should check local regulations before fishing |
| Opening Hours | Open year‑round; the car‑park is accessible 24 hours, though the village amenities follow typical seasonal hours |
The nearest public transport link is the A2 coastal road, which runs through Cushendun and connects to Ballycastle and Cushendall. For those driving, the route offers spectacular coastal scenery but is unsuitable for large coaches or RVs.
Getting There
From Belfast, follow the A2 north‑west for roughly 80 km to reach Cushendun. Signage for the village and the National Trust car‑park is clear. GPS coordinates for the river’s mouth at Cushendun Harbour are approximately 55.1500 N, -6.2500 W.
Seasonal Notes
The river’s brown colour is most vivid after heavy rain when peat runoff intensifies. Salmon and sea trout runs peak from July through September, making this period ideal for anglers. The viaduct and surrounding glen are especially photogenic in autumn when the foliage turns gold.
Nearby Attractions
- Antrim Coast and Glens – the wider protected area that includes the nine Glens, offering additional walks, beaches and coastal scenery. [/antrim-coast-and-glens/]
- Ballycastle – a bustling seaside town with a historic harbour, castle ruins and the nearby Giant’s Causeway. [/ballycastle/]
- Cushendall – a quieter village north of Cushendun, known for its sandy beach and the historic Cushendall Castle ruins. [/cushendall/]
In summary, the River Dun offers a blend of natural beauty, quiet angling, historic engineering, and easy walking routes, all set within the protected landscape of the Glens of Antrim.
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