Iceland Diamond Circle Road Trip — Self-Drive Guide from Keflavík 2026

While the Golden Circle draws the crowds and the Ring Road grabs the headlines, the Diamond Circle in north Iceland quietly delivers some of the most dramatic scenery in the entire country. Europe's most powerful waterfall, a horseshoe-shaped canyon of legend, a geothermal wonderland of bubbling mud and the whale-watching capital of Iceland are all strung together on a single loop. This complete self-drive guide from Aurora Car Rental Iceland explains how to reach the Diamond Circle from Keflavík, what to see, how many days you need and which rental car will get you there in comfort.

What is the Diamond Circle?

The Diamond Circle is north Iceland's answer to the famous Golden Circle near Reykjavík. It is a scenic driving route of about 250 kilometres that connects five headline attractions in the Þingeyjarsýslur region around Lake Mývatn and the town of Húsavík. Unlike the Golden Circle, which can be crowded and easily done in a day from the capital, the Diamond Circle sits far to the north and feels genuinely remote — you share the roads with far fewer tourists and see Iceland at its rawest.

The five classic stops are Dettifoss, the most powerful waterfall in Europe; Ásbyrgi, a vast horseshoe-shaped canyon steeped in Norse mythology; Lake Mývatn, ringed by volcanic craters and pseudo-craters; the Námafjall Hverir geothermal field with its steaming vents and boiling mud pots; and Húsavík, widely regarded as the best whale-watching spot in Iceland. Together they form a loop that packs in waterfalls, canyons, geothermal drama and wildlife — a remarkable variety within a single day's driving.

How to get to the Diamond Circle from Keflavík

The Diamond Circle lies in the far north, roughly 480 km from Reykjavík by the fastest route. Most self-drivers reach it in one of two ways. The quickest is to drive north along Route 1 (the Ring Road) through the west and north of Iceland, passing Akureyri, Iceland's northern capital, before continuing east to Lake Mývatn. Allow around 6 hours of driving from Keflavík, and treat the journey as part of the adventure — Borgarfjörður, the fjords of the north and Akureyri itself are all worth a stop.

The more rewarding approach is to fold the Diamond Circle into a longer Ring Road trip, arriving from the east or the west as part of a full loop of the island. Whichever route you choose, your Aurora Car Rental Iceland vehicle is collected at Suðurbraut 890 in Keflavík, just 10 minutes by taxi from KEF airport, so you can land, pick up your car and be on the road north the same day.

Dettifoss — Europe's most powerful waterfall

Dettifoss is the undisputed star of the Diamond Circle. Fed by the glacial river Jökulsá á Fjöllum, it thunders 44 metres down into the Jökulsárgljúfur canyon with a force unmatched anywhere else in Europe — up to 500 cubic metres of water per second in peak flow. The sheer volume creates a permanent mist that drifts across the surrounding lava plateau, and the roar can be heard long before the falls come into view. Film fans may recognise the location from the opening sequence of a well-known science-fiction blockbuster.

There are viewpoints on both banks. The western side (Route 862) is paved and easier to reach, offering the classic head-on view. The eastern side (Route 864) is gravel and rougher but brings you closer to the water's edge. Just upstream lies Selfoss, a wider, gentler cascade, and downstream is Hafragilsfoss — both worth the short walk. Because the access roads include gravel sections, a 4x4 or a higher-clearance vehicle makes the drive far more comfortable and safe.

Ásbyrgi — the canyon of the gods

A short drive north brings you to Ásbyrgi, a spectacular horseshoe-shaped canyon around 3.5 km long and 1 km wide, with sheer cliffs rising up to 100 metres. Norse legend holds that the canyon was formed by the hoofprint of Sleipnir, Odin's eight-legged horse; geologists point instead to catastrophic glacial floods. Either way, the result is magical — a sheltered, forested amphitheatre with a small pond, birdlife and easy walking trails that lead to the base of the towering rock walls.

Ásbyrgi is part of the Vatnajökull National Park and makes a peaceful contrast to the raw power of Dettifoss just to the south. The visitor centre at Gljúfrastofa is a good place to learn about the geology and the local flora before you explore the trails.

Lake Mývatn and the geothermal wonders

Lake Mývatn is the beating heart of the Diamond Circle and arguably the region where you will want to spend the most time. This shallow, volcanic lake is surrounded by an astonishing concentration of geological features: the pseudo-craters of Skútustaðir, the strange lava formations of Dimmuborgir, the Hverfjall tephra crater and the steaming ridge of Námafjall. In summer the birdlife is prolific, and in winter the whole area takes on an otherworldly, steaming stillness.

Just east of the lake, the Námafjall Hverir geothermal field is a must — a Mars-like plateau of ochre earth, hissing fumaroles and bubbling grey mud pots. Nearby, the Mývatn Nature Baths offer a quieter, cheaper alternative to the Blue Lagoon, where you can soak in mineral-rich geothermal water while gazing over the lake. Give yourself at least a full day to explore the Mývatn area properly.

Húsavík — the whale-watching capital of Iceland

No visit to the Diamond Circle is complete without Húsavík, a charming harbour town on Skjálfandi Bay that has earned its reputation as the whale-watching capital of Iceland. The nutrient-rich waters attract humpback whales, minke whales, dolphins and, on lucky days, blue whales — the largest animals on Earth. Boat tours run from the harbour throughout the summer, with sightings rates among the highest anywhere in the country.

Beyond the whales, Húsavík rewards a wander: the picturesque wooden church, the excellent Whale Museum and the geothermal sea baths overlooking the bay all make the town more than just a departure point. It is the perfect place to end a Diamond Circle loop before driving back toward Akureyri and the route south.

How many days do you need?

You can technically drive the Diamond Circle loop itself in a single long day once you are based near Lake Mývatn, but the region deserves more. Because it sits so far from Keflavík, we recommend a minimum of 5 days for a there-and-back trip that includes the north, and ideally 7 or more days if you want to combine it with a full Ring Road adventure taking in the south coast, the east fjords and Akureyri. Rushing the drive north and back in less than five days leaves little time to actually enjoy the attractions.

Which rental car do you need for the Diamond Circle?

Most of the Diamond Circle can be driven on paved roads, but the access to Dettifoss and several worthwhile detours involve gravel sections (Routes 862 and 864 in particular). While a 2WD can manage the paved core in summer, a 4x4 is strongly recommended for comfort, safety and the freedom to explore the gravel viewpoints and highland edges. In winter, a 4x4 is essential — the north sees heavy snow and the driving demands proper traction.

Aurora Car Rental Iceland offers a fleet that covers every budget and route. Browse the full line-up on our our cars page. For the Diamond Circle, a Dacia Duster or SsangYong Korando handles the gravel with ease, while families will appreciate the extra room of a Kia Sportage. For a serious multi-region expedition, the Toyota Hilux is built for anything Iceland throws at it.

Practical booking notes

Aurora Car Rental Iceland keeps things simple: no deposit required, insurance included in the price, and payment in cash on pickup in either ISK or EUR. Collection is at Suðurbraut 890, 262 Keflavík, a short taxi ride from the airport, so you can land, collect your car and start heading north the same day. Please note that our entire fleet is fully booked and unavailable from 10 to 15 August 2026, so plan alternative dates if your trip falls in that window. Ready to plan your northern adventure? Head to our booking page to reserve.

Frequently asked questions

Aurora Car Rental Iceland — Suðurbraut 890, 262 Keflavík | WhatsApp: +48 729 854 633 | carrentalaurora@gmail.com