The Giant’s Causeway is Northern Ireland’s only UNESCO World Heritage Site and one of the most iconic natural wonders in Europe. A highlight for walking holidays and outdoor adventures, formed some 60 million years ago by intense volcanic activity, its 40,000 interlocking basalt columns tumble into the Atlantic Ocean, creating a dramatic coastal landscape steeped in both geology and mythology. Recognised by UNESCO in 1986 for its outstanding natural value, the site combines spectacular scenery with cultural storytelling — from the legendary giant Finn McCool to the ancient settlers who once walked these shores.
For walkers, the Giant’s Causeway is more than a viewpoint: it’s a gateway to the rugged Causeway Coast. Trails connect sea cliffs, quiet beaches, and fishing villages, while inland routes link to the Ulster Way and wider landscapes of County Antrim. Whether approached on a long-distance walking holiday or explored on a short coastal adventure, the Causeway offers one of the most memorable outdoor experiences in Ireland.
The basalt columns were created around 60 million years ago by volcanic activity. As lava cooled, it contracted and fractured into the distinctive hexagonal shapes seen today.
It was awarded UNESCO status in 1986 for its exceptional geological significance, representing one of the finest examples of volcanic rock formations in the world.
Yes — there are several walking trails around the site, including coastal paths that link with the Causeway Coast Way. Walkers can explore short routes from the visitor centre or follow longer sections of the coastline.
Access to the stones themselves is free. However, entry to the National Trust visitor centre, which includes exhibitions, parking, and facilities, requires a ticket or National Trust membership.
Early morning or late afternoon are the quietest times to explore, especially in summer. Autumn and winter walks offer a wilder experience with fewer crowds, though weather conditions can be more challenging.