Overview
The Bann has always been a line as much as a river. For generations the country west of it was seen as poorer, more Catholic and rural, the east more Protestant and industrial – a split still called the ‘Bann divide’, and still a shorthand in Northern Ireland’s politics. The river rises in the Mourne Mountains, runs through Lough Neagh, and reaches the Atlantic at the Barmouth between Castlerock and Portstewart.
By convention it splits in two: the Upper Bann above Lough Neagh, flowing through County Down and County Armagh past Banbridge, and the Lower Bann below the lough, running through County Antrim and County Londonderry. Be clear about what it is before you go: the Lower Bann is a working, managed waterway, not a wild mountain gorge. Long stretches are flat and functional. The draws are the boating, the fishing and the birds, not scenery that stops you in your tracks.
Source and course
The river rises on Slieve Muck, where mountain streams converge and run north-west into the Spelga Reservoir before passing Hilltown and Banbridge, where the River Clanrye joins. Below Gilford the Upper Bann reaches Bannfoot – the old ferry crossing – and spills into Lough Neagh.
Out the far side, the waterway becomes the Lower Bann. It flows past the Lough Beg wetlands, through Toome, Portglenone and Coleraine, then widens into a tidal estuary at the Barmouth.
History and heritage
People have followed the Bann for a very long time. The excavations at Mountsandel near Coleraine turned up traces of a Mesolithic camp used more than 10,000 years ago – among the earliest known settlement sites in Ireland. Later Roman geographers recorded the river as Argita, ‘the shining one’.
In the 18th and 19th centuries the Bann drove Ulster’s linen industry, powering mills and feeding the Newry Canal, cut to move Tyrone coal to the sea. Commercial navigation carried on until 1954, and left behind a chain of navigation locks at Toome, Portna, Movanagher, Carnroe and – depending which map you trust – Castleroe or the Cutts. Flooding on Lough Neagh, the river’s only natural outlet, was a running problem: a 1738 petition to the Irish Parliament complained of it, and in 1847 five locks were built on the Lower Bann to control levels and raise toll revenue, over budget as these things tend to go. A commercial port at Coleraine still handles metal and coal.
Near Banbridge the river also earns a footnote in the song ‘The Star of the County Down’ – the ballad opens ‘near Banbridge town, in the County Down’, on the banks of the Bann.
Wildlife and nature
The Bann’s banks, floodplains and estuary hold a lot of life.
- Birds: kingfishers, grey herons, cormorants and mute swans along the length of it; in winter the Lough Beg floodplains fill with redshank, lapwing, curlew and snipe.
- Mammals: otters on the quieter stretches, with grey seals and the odd bottlenose dolphin in the tidal lower reaches.
- Fish: the Bann is known for its Atlantic salmon, along with brown trout, European eel and coarse species.
Lough Beg, which adjoins the Lower Bann, is protected as an Area of Special Scientific Interest, a Special Protection Area and a Ramsar site, which is why it is a good place for winter birdwatching.
Boat trips
Waterways Ireland publishes Lower Bann lock information and navigation notices. Carnroe Lock closed on 26 October 2026 for about five weeks of maintenance. Check lock availability, river conditions and permitted moorings before setting out.
Boat trips have run on the Lower Bann from Portglenone and from Coleraine, including a restored 1947 Harland & Wolff vessel, the M.V. Kingfisher. Operators, routes and sailing times change, so check with them directly before you plan around a particular trip.
Angling and watersports
The Bann is known as a salmon river, and the Upper Bann’s faster, clearer water suits coarse anglers after brown trout and eel. Fishing rules vary by stretch and species, so check the current licence, permit and seasonal rules and use authorised access points. The riverbanks include private land.
The calmer stretches near Banbridge have been used by beginners learning to kayak or paddle-board, and local clubs have run seasonal courses. Check with the club or operator before you go.
Walking and the river festival
Riverside footpaths and greenways link some of the towns along the water. The path near Banbridge runs on to the F.E. McWilliam Gallery; further north, routes around Portglenone and Toome pass under 19th-century stone bridges, and the old Newry Canal towpath in Armagh is now a quiet greenway in its own right. Stay on public paths and signed routes. A river festival has been held at Portglenone in August, with regattas, kayak races and community events on the water, so check local listings for dates.
Practical information
- Navigation and tides: the Lower Bann is a managed navigation, with levels regulated by the locks. Tides shift fast near the estuary, so check local tide tables and follow the safety signage at launch points.
- Access: use signed public access points and car parks, and keep to public paths. Check Waterways Ireland’s notices for lock closures.
- Best time to go: autumn for crisp riverside walks and the angling season; winter for the birds on the Lough Beg floodplains.
Check the levels and lock notices before you drive out, and if you are heading for Lough Beg, bring binoculars and boots.