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 vast, ragged circuit of roughly 1,000 km (636 miles) that encircles Northern Ireland, starting and finishing in Belfast and dipping briefly across the border into the Republic 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
The idea of a walking route around Ulster goes back to the 1940s, and the first waymarked Ulster Way came together in the 1970s and early 1980s, joining the province's finest scenery into one great circuit: the Mournes, the Antrim Coast and Glens, the Causeway Coast, the Sperrin Mountains and the Fermanagh lakelands. Over the following decades, changes in land access, road traffic and a patchwork of landowners meant that large stretches fell into disrepair or were simply lost. The route was reviewed and relaunched in 2009, and today's Ulster Way is the revised version of that original dream.
The honest summary: the Ulster Way is better thought of as a network of linked sections than as one seamless, uniformly waymarked trail. Many sections are well signed and a pleasure to walk. Others follow quiet back roads or are only lightly marked, and a few links between the best stretches are better covered by bus or taxi. Almost nobody walks all of it in one go. The smart approach is to choose the sections you want and walk those properly — and to check the official trail updates for closures and diversions before you set out.
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 an expedition of five to six weeks for committed long-distance walkers, and not something most visitors attempt. For everyone else the sensible unit is a section. A few ways to do it:
A long weekend (3 days): the High Mournes, climbing Slieve Donard and following the Mourne Wall. A week (6–7 days): the Antrim Glens and Causeway Coast, linking Glenariff to Ballycastle, Ballintoy and the Causeway. Two weeks: combine the Mournes, the coast and a Sperrin or Fermanagh section, using trains and buses between them.
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.
What to pack
Treat even a day section like a mountain day. Waterproofs and a warm layer, sturdy boots with good grip for boggy ground, a map and compass (or a charged GPS with a backup battery), plenty of water, and food for the whole day. In the Sperrins and the high Mournes you may go hours without passing a shop or a café.
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 1,000 km (636 miles) as a full circuit around Northern Ireland, 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?
Not uniformly. Many sections are clearly signposted, but others are lightly marked or follow roads, so you need proper maps or GPS and should check for trail closures before you go.
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 circuit takes five to six weeks. Individual sections can be walked in one to five days.
Does the Ulster Way go through the Republic of Ireland?
Mostly it stays in Northern Ireland, but it crosses into the Republic for short stretches. Carry photo ID and check your phone roaming when crossing.
Can I walk the Ulster Way in winter?
Coastal sections are walkable year-round, but the high Mournes and Sperrins can be dangerous in snow, ice or low cloud. Daylight is short, so plan shorter 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.
