Lakes, Rivers & Waterfalls in Multi-County Trips

Water rarely respects a county boundary, and that is the thread running through these seven. The River Foyle forms at Lifford where the Finn and the Mourne meet, then runs about 32 km through Derry to Lough Foyle, a tidal estuary that the UK and Ireland have both claimed outright since 1922. The Greencastle to Magilligan ferry crosses its mouth in about a quarter of an hour, which is the quickest way to take in how wide the estuary is.

Newry sits at the other end of the North, a canal city between the Mournes and Slieve Gullion. The Newry Canal of 1742 was the first summit-level canal in Ireland, and its towpath is now the traffic-free Newry Canal Way. Poyntzpass is strung along that same towpath on the Armagh and Down border, so the two work as a single outing on foot or by bike.

The rest are far apart and each needs its own drive. Lough Allen, the first and quietest of the Shannon’s three big lakes, sits among the old iron-mining hills of Leitrim, with the Miner’s Way on the shore. The River Aherlow runs the floor of the valley between the Galtees and Slievenamuck, and the Suck Valley Way makes a 105km loop on the Roscommon and Galway border. Winter brings the swans and waders to the Foyle; the walking routes are better with long evenings.

Where to start

  1. Newry – canal city by the Mournes Northern Ireland

    Grew from a Cistercian abbey into the port of Ireland's first summit-level canal, with the Mournes, Slieve Gullion and Carlingford Lough on its doorstep.

  2. Lough Foyle – the estuary two states claim Derry-Londonderry

    A tidal estuary claimed outright by both states since 1922, holding the North's second-largest intertidal habitat and more than 500 Whooper Swans each winter.

  3. Lough Allen – the Shannon’s first lake Northeastern Connacht

    The first and quietest of the Shannon's three big lakes, set among the iron-mining hills of Leitrim, good for paddling, pike and the Miner's Way.

  4. River Foyle – Derry's river and estuary Northwest Ireland

    Formed where the Finn and Mourne meet at Lifford, it runs 32 km through Derry under the Peace Bridge to a wader-rich estuary.

  5. Poyntzpass – on the Newry Canal Way Poyntzpass

    A small village on the flat Newry Canal Way towpath at the Armagh and Down border, with a Victorian station and a market fair from 1790.

7 of 7 shown — tap a pin for the place.

Muff, Lough Foyle, Inis Eoghain, Co Donegal.
Muff, Lough Foyle, Inis Eoghain, Co Donegal. Courtesy Eamonn Coyle

Lough Foyle – the estuary two states claim

Derry-Londonderry, various

Lough Foyle is a tidal estuary the UK and Ireland have both claimed outright since 1922. Day to day it is Northern Ireland's second-largest stretch of intertidal habitat, filling each winter with more than 500 Whooper Swans, and the Greencastle–Magilligan ferry hops across its mouth in a quarter of an hour.

🌳 Outdoor 🅿️ Free Parking 🐕 Dogs Welcome
The Peace Bridge_Derry~Londonderry
The Peace Bridge_Derry~Londonderry Tourism Ireland by Gardiner Mitchell

River Foyle – Derry's river and estuary

Northwest Ireland, various

The River Foyle forms where the Finn and Mourne meet at Lifford and runs about 32 km through Derry to Lough Foyle and the sea. Three landmark bridges cross it in the city, including the reconciliation-symbol Peace Bridge, and its broad estuary is one of the North's most important wintering grounds for wading birds. It's also a fast, dangerous river, watched over since 1993 by Foyle Search and Rescue.

🌳 Outdoor 🐕 Dogs Welcome

Questions people ask

Which of these can I reach without a car?
Poyntzpass has a Victorian station on the Belfast to Dublin line and the canal towpath runs right through the village; Newry is on the same corridor. The Foyle bridges and riverside are in Derry itself. Lough Allen, the Aherlow and the Suck Valley Way all need a drive.
Can I walk between Newry and Poyntzpass?
Yes. Both sit on the Newry Canal Way, a traffic-free towpath along the 1742 canal and part of National Cycle Network Route 9. It is flat the whole way, which makes it as suited to cycling as to walking.
When is the best time for the birds on the Foyle?
Winter. Lough Foyle is Northern Ireland's second-largest stretch of intertidal habitat and fills each winter with more than 500 Whooper Swans, while the River Foyle's broad estuary is one of the North's most important wintering grounds for wading birds.
Which of these is the quietest?
The Suck Valley Way: 105km of low-lying Roscommon and Galway border country, gentle underfoot at 580m of climb, walked for solitude rather than big views. Lough Allen is the quietest of the Shannon lakes, and the Glen of Aherlow sits off the main tourist circuit.
How do I cross Lough Foyle?
The Greencastle to Magilligan ferry hops across the mouth of the estuary in about a quarter of an hour. It saves the long drive round through Derry, though check current sailings before you plan a day around it.

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