The Glenveagh National Park, located in County Donegal, is Ireland's second largest national park. It combines a Victorian castle perched on the shores of Lough Veagh, ornamental gardens, glacial mountains, boglands and rich wildlife, including the country's largest population of deer and the golden eagle reintroduced since 2000.

Why visit Glenveagh

The site brings together three attractions rarely found in the same Irish park: remarkable built heritage with Glenveagh Castle, landscaped gardens inspired by Victorian and Scottish design, and wild nature typical of northwest Irlande. Hikers will find a network of trails suited to all levels, from family walks along the lake to demanding ascents toward the peaks of the Derryveagh Mountains. History enthusiasts will discover a rich narrative, from 19th-century peasant evictions to 20th-century philanthropic donations.

History of the estate

The estate owes its creation to John George Adair, a landowner of Irish and Scottish heritage born in County Laois. Seeking to establish a large hunting estate, he purchased parcels of land around Lough Veagh between 1857 and 1859. In 1861, he forcibly removed the peasants settled on these lands to reclaim them: this episode, known as the Derryveagh Evictions, remains one of the most controversial in Irish land history.

Adair married Cornelia Wadsworth Ritchie, a wealthy American heiress, with whom he commissioned the construction of Glenveagh Castle between 1867 and 1873. After Adair's death in 1885, Cornelia continued developing the estate: hunting grounds, introduction of a herd of deer, decorative gardens. She resided there until 1916 and died in London five years later, in 1921.

The castle served as a refuge during the Irish Civil War, before changing hands several times. In 1929, Arthur Kingsley Porter, a Harvard professor, purchased the property for his research in Irish archaeology. Following his death in 1933, Henry McIlhenny took over the estate and undertook major restoration works. He sold the property to the Office of Public Works in 1975 and transferred the castle in 1983. The national park opened to the public in 1984, and the castle became accessible to visitors in 1986.

What to see and do

The castle and gardens

The journey from the Visitor Centre to the castle is made by minibus, along Lough Veagh. The granite building houses furnished interiors reflecting Henry McIlhenny's taste for decorative arts. The rhododendron gardens, originally laid out by Cornelia, extend the visit with formal flower beds, a walled vegetable garden and exotic groves.

Wildlife and flora

The park is home to Ireland's largest population of deer, descendants of the herd introduced by Cornelia. The golden eagle, reintroduced since 2000 as part of a dedicated programme, nests in the heights. Boglands, heathlands and oak woodlands also host otters, peregrine falcons and numerous plant species adapted to acidic soils.

Hiking

Several routes depart from the castle. Short walks run along the lake or climb to a viewpoint overlooking the estate. More demanding routes head up the valley toward the park's boundaries or climb to the summit of nearby mountains. Camping is prohibited within the park.

When to visit

The park is open year-round, but seasonality changes the experience:

• May-June: rhododendron bloom in the gardens, ideal for visitors drawn to flowering landscapes.
• July-August: more stable weather and long days, ideal for hiking.
• September-October: deer rut, autumn colours, quieter crowds.
• Winter: misty and solitary atmospheres, but difficult weather conditions and reduced services.

As throughout Donegal, pack waterproof clothing: rain can occur in any season.

Practical information

• Park access: free entry. The castle is paid entry, at a moderate rate, with family tickets available.
• Opening hours: open daily, with wider hours in summer season and reduced hours in winter. Check before you go.
• Duration of visit: allow 3 to 5 hours to combine the Visitor Centre, castle, gardens and a short walk. A full day allows you to add a longer hike.
• Services: cafeteria at the Visitor Centre, minibus shuttle to the castle.

How to get there

The main entrance is found on the R251, between Dungloe and Letterkenny. Two driving routes are possible:

• From Letterkenny, take the N56 northwest, then turn left onto the R255 via Kilmacrennan.
• Pass through the village of Church Hill and Lough Gartan via the R251. This route works well as part of a multi-site tour of Donegal.

No regular public transport serves the park: a car, or an organized tour, remains the simplest solution.

Nearby attractions

The Church Hill route brings you close to Newmills and the Glebe Gallery, the former home of painter Derek Hill, which houses a collection of modern art (Picasso, Kokoschka, Irish artists). The nearby Lough Gartan preserves a site associated with Saint Columba. Letterkenny, the main town in Donegal, offers accommodation and restaurants for exploring the region. To further discover major Irish sites, you can also consult our guide to Newgrange or Rathlin Island.

Frequently asked questions

Plan your trip

Glenveagh naturally fits into an itinerary in northwest Irlande, between Donegal and the Causeway Coast. To build your route, consult our Ireland travel ideas.