Explore Dimmuborgir: A Self-Drive Guide to Iceland's Dark Castles

Journey into a landscape ripped from the pages of myth and legend. Dimmuborgir, or the "Dark Castles," is a vast and dramatically beautiful lava field in North Iceland. Located just east of Lake Mývatn, this otherworldly terrain is defined by its colossal, naturally formed lava rock formations. For anyone embarking on an Icelandic road trip, a visit to Dimmuborgir is an unforgettable experience, offering a glimpse into the raw, volcanic power that has shaped this nation.

This self-drive guide is designed to help you plan your adventure to Dimmuborgir. We will cover everything from the practicalities of reaching this unique destination to the best ways to explore its trails. Discover why a rental car provides the ultimate freedom to experience North Iceland at your own pace and how to secure the best vehicle for your journey, whether you're starting from the capital or arriving at Keflavik.

Why a Rental Car is Essential for Your Icelandic Adventure

Iceland is a country built for road trips. While some key attractions are accessible via tours, the true spirit of the island reveals itself on the open road. Opting for a car rental in Iceland gives you unparalleled freedom and flexibility. You can create your own itinerary, linger longer at spots that capture your imagination, and discover hidden gems far from the crowded tour bus routes.

Exploring Dimmuborgir and the wider Lake Mývatn area is significantly more rewarding with your own vehicle. The region is dotted with numerous attractions, including the Hverir (Namaskard) geothermal area, the Mývatn Nature Baths, and the Grjótagjá cave. Having a car allows you to connect these incredible sights seamlessly, without being tied to a rigid schedule.

Whether you choose to hire a car in Reykjavik upon arriving in the city or prefer the convenience of picking up a rental car from Keflavik Airport, you set the tempo for your trip. A self-drive Iceland tour puts you in complete control, transforming your holiday from a simple visit into a personal expedition.

Introducing Dimmuborgir: The Dark Castles

Dimmuborgir was formed around 2,300 years ago during a massive volcanic eruption. A lava lake pooled over a marshy area, and as the lava flowed, the water beneath it boiled. The rising steam created pillars and hollow chambers within the cooling lava. When the crust of the lava lake eventually drained away, these spectacular, solidified structures were left behind.

The result is a labyrinth of towering rock pillars, twisted caves, and natural arches that resemble the ruins of an ancient, mythical fortress. It is this dramatic, gothic appearance that earned the area its name, "Dark Castles."

Folklore and Mythology

Dimmuborgir is steeped in Icelandic folklore. It is famously said to be the place where Satan landed after being cast from the heavens, creating the "catacombs of hell." More locally, it is known as the home of the Yule Lads, mischievous figures from Icelandic Christmas folklore who are said to emerge from the lava fields one by one in the thirteen nights leading up to Christmas. As you wander through the winding paths, it’s easy to let your imagination run wild and picture these trolls and elves hiding among the shadows.

Planning Your Self-Drive Trip to Dimmuborgir

Dimmuborgir is located in North Iceland, approximately 470 kilometres from Reykjavik. It is a key stop along the Diamond Circle, a popular tourist route that showcases the region's most stunning natural wonders.

Getting There by Rental Car

The journey from Reykjavik to Dimmuborgir is a magnificent road trip in itself. The most direct route follows Iceland's Ring Road (Route 1) eastward. Driving this route typically takes around six to seven hours without stops, but we highly recommend breaking the journey up over at least two days. This allows you to appreciate the stunning scenery of the south coast or the western fjords along the way.

For those flying into Akureyri, the "Capital of the North," Dimmuborgir is just over an hour's drive away. Many visitors choose to establish a base in Akureyri or near Lake Mývatn to explore the area over several days.

When planning your car hire, consider the season. During the summer months (June to August), a standard 2WD vehicle is generally sufficient for driving the paved Ring Road. However, if you plan to explore any of Iceland's unpaved F-roads (highland roads), a 4x4 rental car is mandatory. In winter (October to April), road conditions can be challenging due to snow and ice. A 4x4 is strongly recommended for safety and reliability, providing better grip and stability. Höldur offers a wide range of vehicles, from economical compact cars to robust 4x4s, ensuring you have the right car for your itinerary and the time of year.

Exploring the Trails of Dimmuborgir

Upon arrival, you will find a car park and a service centre with a café and toilet facilities. From here, several well-marked walking trails of varying lengths and difficulties lead into the lava field. It is crucial to stay on these designated paths to protect the fragile moss and delicate lava formations.

Main Walking Trails

• The Small Circle (Litli Hringur): This is a short, paved, and accessible loop of about 15-20 minutes. It's perfect for those short on time or with limited mobility, offering a fantastic introduction to the landscape.
• The Big Circle (Stóri Hringur): This trail takes approximately 30-40 minutes and guides you deeper into the lava formations. It provides a more immersive experience of Dimmuborgir's unique geology.
• The Church Circle (Kirkjuhringur): This is the most popular trail, taking around 60 minutes to complete. It leads you to the famous Kirkjan, or "The Church," a magnificent cave with a high, vaulted ceiling and two pointed-arch openings that resemble Gothic windows. This is the most iconic formation in Dimmuborgir and a must-see for photographers.
• Longer Hikes: For more adventurous hikers, longer, more challenging trails connect to the nearby Hverfjall crater. These routes offer breathtaking panoramic views over the entire Lake Mývatn area but require more time and appropriate hiking gear.

No matter which path you choose, you will be surrounded by a silent, imposing world of black lava. The stark contrast between the dark rock, the vibrant green moss, and the blue Icelandic sky creates a photographer's paradise.

Best Time to Visit Dimmuborgir

Dimmuborgir is a year-round destination, with each season offering a distinct experience.

• Summer (June - August): The midnight sun provides long daylight hours, allowing for extended exploration. The weather is mildest, and all trails are typically open and easily accessible. The landscape is lush with green moss, creating a beautiful contrast with the dark lava.
• Autumn (September - October): The crowds begin to thin, and the landscape takes on rich, autumnal colours. This is also a great time to witness the Northern Lights, which can often be seen dancing above the lava formations on clear nights.
• Winter (November - March): A visit in winter transforms Dimmuborgir into a magical wonderland. A blanket of snow covers the black lava, creating a stark, monochromatic scene. While beautiful, be prepared for cold weather and potentially icy paths. Ensure you have proper winter clothing and sturdy footwear with good grip. A 4x4 car hire is highly advisable for navigating the roads in North Iceland during this season.
• Spring (April - May): As the snow melts, life returns to the landscape. Spring offers a sense of renewal and fewer visitors than the peak summer season. It's a fantastic time for a peaceful visit as the days grow longer.

Making the Most of Your Self-Drive Tour in the Mývatn Area

Dimmuborgir is just one of many incredible attractions around Lake Mývatn. With your rental car, you can easily spend a few days exploring this geothermally active region. Other nearby must-see sites include:

• Hverfjall Crater: A massive tephra explosion crater that you can hike up for stunning views.
• Grjótagjá Cave: A small lava cave containing a geothermal spring, famously featured in the TV series Game of Thrones.
• Hverir Geothermal Area: A surreal landscape of bubbling mud pots, steaming fumaroles, and sulphur-stained earth.
• Mývatn Nature Baths: The "Blue Lagoon of the North," offering a relaxing soak in mineral-rich geothermal waters with beautiful views.
• Goðafoss Waterfall: Located a short drive west of Lake Mývatn, this is one of Iceland's most spectacular waterfalls.

Having a car allows you to visit these sites at your leisure, perhaps catching a sunrise at Goðafoss or enjoying a late-evening dip in the Nature Baths under the midnight sun.

Frequently Asked Questions (FAQs)

How much does it cost to enter Dimmuborgir?

There is no entrance fee to visit Dimmuborgir, but there is a small fee for parking. This fee helps maintain the facilities and protect the natural environment.

Do I need a 4x4 to visit Dimmuborgir?

The road to Dimmuborgir from the Ring Road is paved and accessible with a 2WD vehicle during summer. However, a 4x4 hire in Iceland is recommended for winter travel (October-April) due to potential snow and ice. A 4x4 is also legally required if you plan to drive on any of Iceland's highland F-roads.

How long should I spend at Dimmuborgir?

Plan for at least one to two hours to fully appreciate the area. This allows enough time to walk the Church Circle trail and take photographs without rushing. If you are an avid hiker, you could easily spend half a day exploring the longer trails.

Are there facilities at Dimmuborgir?

Yes, there is a service centre at the entrance with a gift shop, a café (Kaffi Borgir) offering refreshments and light meals, and public toilets.

Is it safe to drive in Iceland in winter?

Driving in Iceland during winter requires caution. Roads, especially in the north, can be icy and snowy. It is essential to rent a vehicle equipped for winter conditions, such as a 4x4 with studded tyres. Always check the road conditions on road.is and the weather forecast on vedur.is before setting out. Drive slowly, keep a safe distance from other vehicles, and be prepared for sudden changes in weather.

Your Icelandic self-drive adventure offers a unique opportunity to connect with nature on your own terms. A trip to the magnificent Dimmuborgir is a journey into a world of myth, geology, and breathtaking beauty—an essential part of any North Iceland itinerary.

Search for a car!