Lakes, Rivers & Waterfalls in County Donegal

Water in Donegal takes three fairly distinct forms, and this list covers all of them. Assaranca Waterfall, on the coast road west of Ardara, is the one you can watch without leaving the car; it runs hard after rain and thins to very little in a dry week, so check the forecast before you make the detour. Glenevin Waterfall near Clonmany, at the far northern end of the county in Inishowen, asks a bit more: an easy 1 km path up a sheltered glen, rebuilt by local volunteers after a flood took it out, with free entry and parking at the bottom.

The loughs sit inland and mostly need a drive. Lough Eske spreads across 900 acres in a bowl of the Bluestacks a short run from Donegal Town, with a five-star hotel on the restored castle site and salmon and sea trout from March to September. Dunlewey lies under Errigal in the north-west, with the weaver’s cottage and boat trips on the shore and the Errigal trailhead in the village. Gartan, on Lough Gartan, holds Colmcille’s birthplace inside an older hill fort.

The rivers are largely for anglers. The Finn, the Clady at Gweedore and the Leannan all run salmon, though much of the Finn is private estate water; the Twin Towns Heritage Trail and the Ramelton quays give walkers a way in.

Where to start

  1. Assaranca Waterfall – Donegal roadside falls

    A roadside fall on the coast road west of Ardara that you can watch from the car door, loudest after rain and easily paired with Maghera Beach.

  2. Dunlewey – lough, weaving and Errigal Dunlewey

    A lough in a bowl of mountains under Errigal, with a restored weaver's cottage, boat trips and the Poisoned Glen just to the south.

  3. Gartan – Colmcille's birthplace by the lough Gartan

    The lakeshore birthplace of St Colmcille in 521, with a holy well, stone crosses and a graveyard set inside a much older hill fort.

  4. Glenevin Waterfall Clonmany

    An easy 1 km walk up a sheltered Inishowen glen to falls dropping over black rock into a pool, with free entry and parking.

  5. Lough Eske – lake beneath the Bluestacks

    Nine hundred acres of water under the Bluestacks near Donegal Town, with a castle island, a five-star hotel and a spring-to-autumn salmon run.

24 of 25 shown — tap a pin for the place.

Stroove Lighthouse, Co Donegal
Stroove Lighthouse, Co Donegal Gardiner Mitchell

Stroove Lighthouse – Inishowen's marker at the mouth of Lough Foyle

Greencastle, donegal

Stroove Lighthouse has marked the entrance to Lough Foyle from Dunagree Point since 1837, guiding ships clear of the Tuns Bank. The tower is a working Irish Lights station and not open to visitors, but it stands above a Blue Flag beach with picnic tables and the start of the Inishowen Head loop walk, with views across to Magilligan and the Antrim coast.

🌳 Outdoor

Questions people ask

Which Donegal waterfall is easiest to reach?
Assaranca, on the coast road west of Ardara, is visible from the roadside and needs no walk at all. Glenevin near Clonmany involves a 1 km path up the glen, but it is level going and entry and parking are free.
Do the waterfalls run all year?
Assaranca depends heavily on rain. It is at its loudest in the days after heavy weather and barely worth the detour during a dry spell, so time a visit for autumn, winter or a wet week rather than a settled summer one.
Where do I need a permit to fish?
Dungloe Lake sells day permits at roughly ten euro, with a boat about fifteen, from Charlie Bonner's tackle shop in the town. One permit covers both the Clady and the Crolly at Gweedore. Most of the Finn is private estate water.
Are these places close together?
No. They are spread right across the county: Glenevin and Stroove are in Inishowen in the north, Dunlewey and the Rosses loughs in the west, Lough Eske and Assaranca in the south-west, and the Finn Valley in the east. Plan around one area per day.
Which ones suit a walk rather than a drive-by?
Glenevin has a made path up the glen, the Twin Towns Heritage Trail follows the Finn between Ballybofey and Stranorlar past Drumboe Castle, Dungloe has a short waymarked river loop, and Ramelton's old quays give the best walking on the Leannan.

← All things to do in County Donegal

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