The Ulster Way: A Guide to Ireland's Longest Walking Trail

Most of Ireland's long-distance trails are a single line on a map. The Ulster Way is a loop — a great, ragged circuit of roughly 900 km that runs through all six counties of Northern Ireland and dips into Donegal, Cavan and Monaghan along the way. It is the longest walking route on the island, and one of the least understood. This is the honest guide: what it is, what it isn't, and how to walk the best of it.

What the Ulster Way actually is

Opened in the early 1980s, the Ulster Way was dreamed up as a single waymarked walk around the whole of Ulster, linking the province's finest scenery: the Mournes, the Antrim Coast and Glens, the Causeway Coast, the Sperrin Mountains and the Fermanagh lakelands. Over the decades, changes in land access and a patchwork of managing bodies have left it as something rather different from the tidy single trail of the original plan.

Today the Ulster Way is best thought of as a network of linked sections. The best stretches are designated Quality Sections: well-signed, well-maintained, and good to walk. Other parts follow quiet back roads or are only lightly waymarked, and a few links between sections are better skipped by taxi or bus. Almost nobody walks all 900 km in one go. The smart way to enjoy the Ulster Way is to choose the sections you want and walk those properly.

The sections worth walking

The Mournes

If you only walk one part of the Ulster Way, make it the Mournes. Granite summits, the famous Mourne Wall rolling over the tops, and Slieve Donard (850 m), the highest mountain in Northern Ireland, rising almost directly from the sea at Newcastle. This is proper hill country: expect steep climbs, big views and weather that changes in an hour.

The Glens and Antrim Coast

Heading north, the trail threads the nine Glens of Antrim — deep green valleys running down to a cliff-backed coast. It is dramatic, quietly historic, and far less crowded than you would expect for scenery this good. Our guide to walking the Glens of Antrim covers it in more detail.

The Causeway Coast

The most famous stretch: sea cliffs, the Giant's Causeway, Dunseverick and Carrick-a-Rede. It is also the busiest, so start early and walk the quieter sections between the headline stops. See our Causeway Coast Way guide for the detail.

The Sperrins

Wide, rounded, empty hills — the Sperrin Mountains are the Ulster Way at its most solitary. Sawel (678 m) is the high point. There are few facilities here, so plan your food and water, and don't expect much company.

Fermanagh and the Cuilcagh uplands

The west of the loop belongs to Lough Erne's islands and the limestone country around Marble Arch Caves and Cuilcagh Mountain, whose boardwalk across the blanket bog has become famous as the "Stairway to Heaven". It lies close to the Shannon source on the Cavan Way, and the two make a natural pairing for a trip into the border country.

How long does it take?

The full circuit is a month-plus expedition of 40 or more walking days for committed long-distance walkers. For everyone else the sensible unit is a section: a day in the Mournes, a long weekend on the Antrim coast, or a week linking several Quality Sections. Distances between sections vary widely, and so does the quality of the surface.

Difficulty and navigation

Difficulty varies as much as the scenery, from gentle coastal paths to remote, exposed hill sections with real navigation demands. Waymarking is not as continuous as on the Wicklow Way or Kerry Way, so carry the relevant OSNI Discovery maps and a GPS or good map app, and be comfortable reading them. Sperrin and Mourne sections can be boggy and wet at any time of year.

When to go

May to September gives you the longest days and the best chance of settled weather, though Northern Ireland weather is never reliably settled. Late spring and early autumn are quieter on the Causeway Coast. Winter walking is possible on the coast, but high sections of the Mournes and Sperrins can be serious.

Practicalities: getting there and staying

Belfast is the natural base, with good rail and bus links to Newcastle and the north coast. Accommodation along the route ranges from hostels and B&Bs to hotels in towns like Newcastle, Ballycastle and Enniskillen, but is thinner in the Sperrins. Book early in July and August. Remember that most of the loop lies in the UK, so check your entry requirements if you are travelling from the Republic or from abroad.

Can I book the Ulster Way with Walking Holiday Ireland?

Not at the moment. Because the Ulster Way is a network of sections rather than a single trail, we don't sell it as a packaged self-guided walk. If you want to experience Irish long-distance walking with luggage transfers, accommodation and route notes handled for you, our nearest equivalent in the north of the island is the Cooley Peninsula and the legendary Táin Way. To see how the Ulster Way fits into the wider picture, read our complete guide to Ireland's National Waymarked Ways, or get in touch and we'll happily help you plan something tailor-made.

Frequently Asked Questions

How long is the Ulster Way?

Roughly 900 km as a full circuit, making it the longest walking route in Ireland. Most walkers do it in sections rather than all at once.

Is the Ulster Way fully waymarked?

No. The designated Quality Sections are well signed, but other stretches are lightly waymarked or follow roads, so you need proper maps or GPS.

What is the best section of the Ulster Way?

Most walkers pick the Mournes for mountain scenery and the Causeway Coast for sea cliffs. The Glens of Antrim are the quieter alternative.

How many days does the Ulster Way take?

The whole loop takes well over a month. Individual sections can be walked in one to five days.

Does Walking Holiday Ireland offer an Ulster Way tour?

Not at present. We can help you plan a tailor-made route in the north of the island — just get in touch.