4.6
(16)
873
riders
12
rides
Touring cycling in Kaldárhraun Og Gjárnar offers routes through a distinctive volcanic landscape in Hafnarfjörður, Iceland. The area is characterized by vast fields of pahoehoe lava, geological fissures, and volcanic peaks such as Helgafell and Búrfell. Cyclists can navigate varied terrain, including both paved and gravel sections, providing access to unique geological features like the Búrfellsgjá lava channel. This region provides a setting for no traffic touring cycling routes amidst Iceland's natural formations.
Last updated: July 9, 2026
5
riders
6.68km
00:38
60m
50m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
12
riders
12.7km
01:07
100m
100m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

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12
riders
17.4km
01:21
180m
180m
Hard bike ride. Good fitness required. You may need to push your bike for some segments of this route.
5
riders
16.3km
01:04
120m
120m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
14
riders
18.2km
01:22
150m
150m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Kaldárhraun Og Gjárnar
As of August 18, 2025: Iceland experienced its twelfth volcanic eruption in just over four years. On the sparsely populated Reykjanes Peninsula, southwest of Reykjavik, the earth opened up again on Wednesday, July 16. Since Tuesday, August 5, no more lava has been escaping from the eruption fissure located approximately seven kilometers northeast of Grindavik. Volcanologists believe it is highly likely that the eruption has ended for the time being. The temporarily closed campsite in the town of Grindavik is now freely accessible again.
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Really impressive in the old lava fields
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Here you can see how they generated energy years ago.
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The fissure is surrounded by ancient lava flows that have cooled and solidified, forming a rugged, rocky landscape. Despite the volcanic terrain, the area is home to a surprising amount of vegetation adapted to lava soil, as well as birds and other animals typical of Iceland.
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It is a unique geological feature located near Reykjavik in Iceland. It is a canyon formed by a volcanic fissure in the Hafnarfjörður region on the Reykjanes Peninsula. It is a fascinating place for both its geology and natural beauty. Near Búrfellsgjá is the Búrfell crater, which is an impressive volcanic feature in itself. This crater is almost perfectly shaped and offers a closer look at the volcanic activity that formed the region.
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Open 12pm - 5pm, Tuesday closed. Information about the current exhibitions is available at https://hafnarborg.is/
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Hafnarfjörður Museum is spread across eight locations in the city, including Pakkhús and Sívertsensensenshaus. Open 11 a.m. to 5 p.m., free admission.
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Nestled in the picturesque town of Hafnarfjörður, Iceland, lies the tranquil Hvaleyrarvatn, a serene lake that enchants visitors with its pristine beauty. Surrounded by rolling hills and lush greenery, this hidden gem offers a peaceful retreat from the hustle and bustle of everyday life. The crystal-clear waters of Hvaleyrarvatn mirror the ever-changing skies above, creating a breathtaking reflection that amplifies the natural splendor. Visitors can explore the lake's shores, meandering along peaceful trails that lead to secluded spots for picnics or quiet contemplation. Hvaleyrarvatn's idyllic setting makes it a perfect haven for nature lovers and a sanctuary for those seeking solace amidst Iceland's awe-inspiring landscapes.
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Kaldárhraun Og Gjárnar offers a selection of 14 dedicated no-traffic touring cycling routes. These routes cater to various skill levels, with 7 easy, 4 moderate, and 3 difficult options.
The terrain in Kaldárhraun Og Gjárnar is characterized by its unique volcanic landscapes. You can expect to cycle through vast fields of pahoehoe lava, which have smooth, rope-like surfaces. While some routes may be paved, many will involve gravel or dirt paths, offering a mix of road and gravel biking experiences. Be prepared for varied conditions, including potential loose gravel or even sand in some areas.
Yes, there are several easy routes suitable for families. For instance, the Hvaleyrarvatn Lake loop from Ástjörn og Ásfjall is an easy 6.7 km route that offers a pleasant ride around the lake, perfect for a family outing. Another great option is the Fault Line Before Búrfell – Búrfellsgjá Lava Fissure loop from Kaplakriki, an easy 12.7 km route that allows you to explore fascinating geological features.
While Kaldárhraun Og Gjárnar is a nature reserve, specific regulations regarding dogs on cycling trails can vary. It's generally advisable to keep dogs on a leash to protect the delicate volcanic environment and wildlife. Always check local signage or official park guidelines for the most current information on dog policies before heading out.
The region is rich in dramatic geological formations. You can explore impressive lava fields, geological fissures, and volcanic peaks like Helgafell and Búrfell. The Búrfellsgjá Lava Fissure, complete with a crater, is a significant geological wonder accessible on one of the routes. The Gáigahraun Lava Field also offers a unique landscape to cycle through.
The best time for touring cycling in Kaldárhraun Og Gjárnar is typically during the warmer months, from late spring to early autumn (May to September). During this period, the weather is generally milder, and daylight hours are longer. However, Iceland's weather is famously unpredictable, so always be prepared for strong winds and sudden changes, regardless of the season.
Yes, many of the no-traffic touring routes in Kaldárhraun Og Gjárnar are designed as loops, allowing you to start and finish at the same point. Examples include the Hvaleyrarvatn Lake loop and the Fault Line Before Búrfell – Búrfellsgjá Lava Fissure loop. These circular routes are convenient for exploring the area without needing shuttle services.
Parking is generally available at common starting points for routes, such as near Ástjörn og Ásfjall or Kaplakriki, which serve as access points for several tours. Always look for designated parking areas to ensure you are not obstructing access or damaging the natural environment.
Given Iceland's unpredictable weather, layering is key. Wear moisture-wicking base layers, an insulating mid-layer, and a waterproof and windproof outer shell. Gloves, a hat or headband, and sturdy cycling shoes are also recommended. Even on sunny days, strong winds can make it feel much colder, so be prepared for all conditions.
The area is highly rated by the komoot community, with an average score of 4.7 stars. Reviewers often praise the unique and dramatic volcanic landscapes, the sense of tranquility on the no-traffic paths, and the opportunity to experience Iceland's raw natural beauty up close. The varied terrain, from smooth lava fields to gravel paths, also adds to the adventure.
Yes, for experienced cyclists seeking a greater challenge, routes like the Atvinnubótavegur Trail loop from Hafnarfjordur offer a moderate difficulty over 21.7 km with significant elevation changes. The Hvaleyrarvatn Lake – Picnic location at Miðhöfði loop from Hafnarfjordur is another challenging option, rated difficult, covering 17.3 km with substantial climbs.

