Askja Caldera is a large volcanic crater located in the central highlands of Iceland, within the Dyngjufjöll mountains. It was formed through a series of volcanic eruptions, with one of the most significant occurring in 1875. This eruption was powerful enough to create the caldera we see today and had widespread effects, including ashfall that impacted areas as far away as Norway. Inside Askja Caldera lies Lake Öskjuvatn, one of Iceland's deepest lakes, known for its striking blue color. Nearby is another smaller but intriguing lake called Víti, which means "hell" in Icelandic. Víti is a geothermal explosion crater filled with warm, milky-blue water suitable for bathing. The area surrounding Askja is remote and rugged, marked by lava fields and barren landscapes that resemble the moon's surface. In fact, astronauts from NASA trained here in preparation for lunar missions due to its unique terrain. Askja remains an active volcanic area, though it is closely monitored by scientists. Visitors are drawn to its dramatic beauty and geological significance, making it a fascinating destination for those interested in volcanoes and natural wonders.
A remote volcanic wonderland, nestled within Iceland's central highlands, Askja is a destination for those who are seeking for a real adventure. Just getting to Askja is an adventure in itself: it requires a 4x4 vehicle, you will drive through rugged terrains, vast lava fields, and you will cross several rivers. Not being very experienced in off-road driving we preferred to book a tour with Ice Ak, a company based in Akureyri (An amazing experience, I definitely recommend it!). The tour took us in several nice spot; highlights were: 1. Herðubreið mountain (we stopped at the ranger house) 2. Lunch stop at Dreki hut, with a quick walk to a nice waterfall 3. Viti crater, which translates to "hell" in Icelandic. The crater is a stunning turquoise pool, you can leave the car at a parking and take a hike in the caldera and down into the crater 4. Holuhraun Lava Field: formed during the 2014-2015 eruption, seems banal but it really feels like you're on the moon (and actually Neil Armstrong, Buzz Aldrin and Michael Collins trained here before going to the moon!). From a specific point you also have a nice view on Vatnajökull glacier So if you like nature in its rawest form, vast landscapes and you are interested in the power of geological forces, go to Askja!
We took the approach to Askja via the F905 and the F910. There are two fords, which we could master in August after little rain with a Kia Sportage. You should allow 3-4 hours each for the way there and back. The views already on the approach are unique! After the hut Dreki it goes a very bumpy distance over 8km up to the parking lot, the crater lakes can be reached after 20 minutes on foot. In the small crater lake Viti you can swim at your own risk, the lake has about 24 to 26 degrees. However, the descent to the lake is very steep and not quite easy. Very impressive place!
The best unique experience in Iceland. Free parking after 3 hours on rocky roads and 20 mins walk from carpark
Askja Caldera is a large volcanic caldera located in the central highlands of Iceland, known for its breathtaking geothermal landscapes and the pristine crater lake, Öskjuvatn.
Askja Caldera was formed by a series of volcanic eruptions, with the most significant event occurring in 1875, leading to the collapse of the roof of a magma chamber.
Lake Öskjuvatn is one of Iceland's deepest lakes, and its crystal-clear waters are surrounded by stark volcanic landscapes, creating a surreal and otherworldly atmosphere.
Yes, visitors can swim in Lake Viti, a geothermal crater lake located within Askja Caldera. The water temperature can be quite warm due to geothermal activity, offering a unique bathing experience.
The best time to visit Askja Caldera is during the summer months from June to September when access roads are open and weather conditions are more favorable for hiking and exploring.