Belfast to the Giant's Causeway

By the Viamo editorial team · Editor Terje Moy · Last updated July 2026 · 5 min read

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The Giant's Causeway, on Northern Ireland's north Antrim coast, is about 110 km from Belfast and one of the UK's most striking natural landmarks — 40,000 interlocking basalt columns formed by ancient volcanic activity, and free to walk out onto at any time. A train-and-bus combination, an organised day tour or a drive along the Antrim Coast Road will all get you there, each suiting a slightly different kind of day. Many visitors arrive via Dublin on the cross-border Enterprise train before continuing north.

Train to Coleraine, then the Causeway Rambler

Translink NI Railways runs trains from Belfast's Grand Central Station to Coleraine in around 1h to 1h20, with some services direct and others requiring a change — see our Britain by train guide for how the wider network and ticketing works. From Coleraine, the seasonal Causeway Rambler bus (route 402) links Coleraine, Portrush, the Giant's Causeway, Bushmills and on to Ballycastle, taking around 30–40 minutes to reach the Causeway itself. This service runs mainly through the spring-to-autumn season with more frequent departures in summer, so check current timetables carefully if travelling outside peak months, as the connection can be considerably less frequent — or absent — in deep winter.

An alternative is to change at Coleraine for Portrush, a popular seaside town on the same rail branch, and pick up the Causeway Rambler there instead — useful if you want to combine the trip with time at the beach or in Portrush itself.

Organised tours from Belfast

Full-day guided tours from Belfast are a popular option, typically running 9–10 hours door to door and often bundling in Carrick-a-Rede rope bridge, the Dark Hedges (the beech-tree avenue familiar from film and television) and sometimes Dunluce Castle, along the way. This suits travellers who want several north Antrim highlights covered in one day without managing multiple train and bus connections, and many operators include a guide who narrates the coastline's geology and history en route.

Driving the Antrim Coast Road

The drive from Belfast takes around 1h45–2h via the Antrim Coast Road (A2), one of the great coastal drives in these islands, winding beneath cliffs and through villages with the sea close alongside for much of the route. Worthwhile stops along the way include Carrickfergus Castle near Belfast, the Glens of Antrim, and Carrick-a-Rede rope bridge before you reach the Causeway itself. Self-driving gives the most flexibility for stopping where you like, though it means missing out on a guide's commentary. See our driving in the UK guide for the basics on road rules and hiring a car in Northern Ireland.

What you'll see

The Causeway itself — the hexagonal basalt columns stepping down into the sea — is free to visit and always open; only the National Trust visitor centre, with its exhibition on the site's formation and folklore, and the car park charge a fee. Most visitors spend 1–2 hours at the stones themselves, walking out along the shore path, with more time if you continue on the clifftop trails for wider coastal views. The famous "Finn MacCool" legend, explaining the columns as stepping stones built by a giant, is told alongside the geological explanation throughout the site.

The science and the legend

The basalt columns were formed around 60 million years ago, when lava from intense volcanic activity cooled rapidly on contact with the sea, cracking into the tightly packed hexagonal — and occasionally pentagonal or heptagonal — columns visible today. Local folklore tells a different story: that the giant Finn MacCool built the causeway as stepping stones to reach a rival giant in Scotland, and the visitor centre presents both explanations side by side, letting visitors take their pick. The columns continue, in geological terms, across the sea to Fingal's Cave on the Scottish island of Staffa, evidence of the same ancient lava flow.

Practical tips

• Book train tickets and, in peak summer, Causeway Rambler tickets in advance if your travel dates are fixed, since both can be busy on fine-weather days.
• Wear sturdy, grippy shoes — the basalt stones are uneven and slippery when wet, which is often.
• The visitor centre has a café and toilets; there's little else in the way of facilities right at the stones themselves, so plan accordingly if you're spending a few hours on the headland.

Combining with other Antrim coast stops

Because the Causeway sits on the wider Causeway Coastal Route, many visitors extend the day — or turn it into an overnight trip — to take in Carrick-a-Rede, the Dark Hedges, Dunluce Castle's ruins on the clifftop, and the Bushmills Distillery, all within a short drive of the Causeway itself. Travellers coming from further afield sometimes combine this trip with a wider Northern Ireland itinerary; see our guide to Belfast to Derry for the onward rail journey along the north coast in the other direction.

Which should you choose?

The train to Coleraine and Causeway Rambler is the most economical option for independent travellers, provided you're visiting in the season when the connecting bus runs frequently. An organised tour is the easiest way to see several north Antrim sights in one day without managing connections, particularly outside peak season. Driving the Antrim Coast Road gives the most flexibility and is a memorable journey in its own right, but means giving up the guide's commentary that tours provide. Whichever you choose, allow the better part of a day given the distance involved.

Frequently asked questions

How do I get from Belfast to the Giant's Causeway without a car?

Take the train from Belfast to Coleraine, around 1h to 1h20, then the seasonal Causeway Rambler bus (route 402) on to the Causeway, about 30–40 minutes. Organised day tours from Belfast are also widely available year-round.

How far is the Giant's Causeway from Belfast?

About 110 km. Driving takes around 1h45–2h via the Antrim Coast Road, while the train and bus combination takes roughly 2–2h30 including the connection.

Is the Giant's Causeway free to visit?

Yes, the stones themselves are free and open at all times. Only the National Trust visitor centre exhibition and the car park carry a charge.

Does the Causeway Rambler bus run all year?

It runs mainly from spring through autumn with the most frequent service in summer; departures are much more limited, or unavailable, in winter, so check current timetables before relying on it outside the main season.