The Giant’s Causeway
Welcome to the enchanting world of Ireland, where myths and legends are intertwined with natural beauty. One of the country’s most iconic and awe-inspiring sights is the Giant’s Causeway, a UNESCO World Heritage site that will captivate your imagination. Experience the magic of the Giant’s Causeway with a self-guided hiking tour and coastal walking adventure. Let’s explore this incredible natural wonder and what awaits you on your unforgettable journey.

The Geology of the Giant’s Causeway
The Giant’s Causeway is not only a treasure trove of mythology and legends but also a fascinating geological marvel. Its unique basalt columns are a testament to the power of nature and the result of ancient volcanic activity. Let’s take a closer look at the geology that shaped this iconic site.
The Unique Basalt Columns
The Giant’s Causeway is composed of around 40,000 interlocking basalt columns, most of which are hexagonal, although some have four, five, seven, or eight sides. The columns vary in height, with the tallest reaching up to 12 meters (39 feet).

Formation of the Giant’s Causeway
The story of the Giant’s Causeway’s formation dates back around 50 to 60 million years ago when the Earth’s crust was subjected to intense volcanic activity. During this period, the region that now forms the Antrim Plateau experienced a series of volcanic eruptions. As molten basaltic lava flowed from the fissures in the Earth’s crust, it spread across the landscape, eventually reaching the sea.
When the hot lava came into contact with the cooler sea water, it began to solidify rapidly, forming a layer of basalt. This process continued over thousands of years, resulting in multiple layers of basaltic lava. As the lava cooled and solidified, it contracted and cracked, creating the distinctive hexagonal columns seen at the Giant’s Causeway today.
The Legends and Mythology of the Giant’s Causeway
The Giant’s Causeway is not only a remarkable geological wonder but also a place where Irish folklore and mythology come to life. Steeped in legends and tales of giants, the Causeway has captured the imagination of visitors for centuries. Let’s delve deeper into the rich mythology surrounding this iconic site.
Finn MacCool and the Scottish Giant
The most famous legend associated with the Giant’s Causeway tells the story of the Irish giant Finn MacCool, or Fionn mac Cumhaill. According to the tale, Finn was challenged to a fight by a Scottish giant named Benandonner. Finn built a massive causeway across the North Channel to reach his rival, connecting Ireland to Scotland.
When Finn finally laid eyes on Benandonner, he realized that the Scottish giant was much larger than he had anticipated. Fearing defeat, Finn and his wife Oonagh devised a clever plan to outwit the mighty Benandonner. They disguised Finn as a baby, and when Benandonner arrived at their home, Oonagh told him that Finn was out but would return soon.
Upon seeing the enormous “baby,” Benandonner grew terrified, believing the father must be colossal if the child was this large. The Scottish giant fled back to Scotland, tearing up the causeway behind him to prevent Finn from pursuing him. All that remains today are the basalt columns of the Giant’s Causeway in Ireland and Fingal’s Cave on the Scottish Isle of Staffa.

Explore the Causeway with a Self-Guided Hiking Tour
Our 8-day Giant’s Causeway and Glens of Antrim self-guided walking tour is the perfect way to experience the breathtaking beauty of this natural wonder. The tour includes guided walks, accommodation, luggage transfers, and detailed route maps, ensuring a stress-free and enjoyable adventure.
A Coastal Adventure: Walking the Antrim Coast
The Giant’s Causeway isn’t the only gem along the Antrim Coast. There are many other picturesque locations to explore on your coastal walking tour, from the Carrick-a-Rede Rope Bridge to the historic Dunluce Castle. Our self-guided 5-day Causeway Coast Trek will take you on a journey along the dramatic coastline, revealing stunning views and fascinating history.
Frequently Asked Questions about The Giant’s Causeway
How difficult is the hiking on the Giant’s Causeway tour?
Our Giant’s Causeway hiking tour is graded as moderate, with daily walking distances ranging from 10 to 20 km. The terrain is generally well-maintained paths and some coastal trails, with a few short steep sections.
When is the best time to visit the Giant’s Causeway?
The best time to visit the Giant’s Causeway and hike the Antrim coast is between April and October, when the weather is generally milder and drier. For more information on the best time to visit Ireland, check out our best time to visit guide.
What should I wear for the Giant’s Causeway hiking tour?
Wear comfortable, moisture-wicking clothing and sturdy, waterproof hiking boots. Layering your clothes is essential, as the weather can be unpredictable. For more information on what to wear, visit our clothing tips page.
Top 5 Must-Visit Sights on Your Giant’s Causeway Adventure
- The Giant’s Causeway – The star attraction, with its unique basalt columns and fascinating legends.
- Carrick-a-Rede Rope Bridge – Test your bravery and take in the breathtaking views as you cross this historic rope bridge.
- Dunluce Castle – Explore the ruins of this majestic cliff-top castle, steeped in history and mystery.
- Bushmills Distillery – Visit Ireland’s oldest working distillery and learn about the whiskey-making process, followed by a tasting session.
- The Glens of Antrim – Discover the nine stunning glens, each with its own unique charm and character, showcasing the diverse landscapes of Northern Ireland.
Plan Your Unforgettable Irish Adventure
Embark on a journey of discovery as you explore the wonders of the Giant’s Causeway and the Antrim Coast. With our self-guided walking tours, you’ll have the freedom to explore at your own pace, while our expertly crafted itineraries ensure you experience the very best of this enchanting region. Don’t wait any longer – start planning your unforgettable Irish adventure today!
Ready to Book Your Giant’s Causeway Hiking Tour?
For more information on our Giant’s Causeway hiking tours and to book your unforgettable Irish adventure, visit our contact page or give us a call. We look forward to helping you create lasting memories in the magical land of Ireland.