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N56

Donegal: Slieve League to Fanad Head

Some of Europe’s highest sea cliffs, Gaelic-speaking valleys, a mountain pass, Glenveagh National Park and the lighthouse at Fanad Head.

Distance
191 km (119 mi)
Driving
2 h 38 min
Suggested days
5
Stops
9
Countries
Ireland
Updated
June 25, 2026

At a glance: 5-day road trip of about 191 km (119 mi) with 9 stops, from Donegal to Fanad Head lighthouse. About 2 h 38 min of driving in total.

Route description

Donegal town has a castle on the river Eske and a busy central square. Follow the N56 and R263 west along Donegal Bay through Killybegs, Ireland’s largest fishing port, to Teelin and the Slieve League cliffs. In summer the road to the upper viewpoint is often closed to cars, so walk or take the shuttle from the visitor centre.

Continue to Glencolumbkille, a remote Irish-speaking valley with a folk village and a sandy beach. The road north climbs to the Glengesh Pass, whose hairpins drop into a glacial valley, and on to Ardara, a small town known for its tweed.

The N56 follows the coast through the Rosses and Gweedore, with Errigal mountain rising inland. Detour to Glenveagh National Park, where a shuttle bus runs along Lough Veagh to the castle and its gardens.

Dunfanaghy is a good base on Sheephaven Bay; drive the narrow loop over Horn Head for its cliffs. End the trip on the Fanad peninsula, following the Atlantic Drive to Fanad Head lighthouse between two sea loughs. Roads are narrow and weather changes fast, so give yourself more days than the distances suggest.

Stop-by-stop itinerary

In driving order. Distances are estimates between consecutive stops.

  1. 1

    Donegal

    Ireland
    Start
  2. 2

    Slieve League cliffs

    ViewsTeelin, Ireland

    Some of the highest sea cliffs in Europe, rising about 600 m from the Atlantic. From the visitor centre, walk or take the shuttle up to the Bunglass viewpoint.

    46 km
  3. 3

    Glencolumbkille

    Ireland
    12 km
  4. 4

    Glengesh Pass

    ViewsArdara, Ireland

    A glacial valley crossed by a road of hairpin bends between Glencolumbkille and Ardara. Stop at the viewpoint at the top.

    15 km
  5. 5

    Ardara

    Ireland
    12 km
  6. 6

    Glenveagh Castle

    HistoryChurchill, Ireland

    A 19th-century castle and gardens on Lough Veagh in Glenveagh National Park. Park at the visitor centre and walk or take the shuttle bus along the lake.

    54 km
  7. 7

    Dunfanaghy

    Ireland
    19 km
  8. 8

    Horn Head

    ViewsDunfanaghy, Ireland

    A narrow loop road over a high headland north of Dunfanaghy, with sheer cliffs and seabirds. Not suited to large motorhomes.

    4 km
  9. 9

    Fanad Head lighthouse

    ViewsFanad, Ireland

    A white lighthouse on the rocks between Lough Swilly and Mulroy Bay. The view from the road above is the classic photo.

    29 km