From Seyðisfjörður: Stuðlagil Canyon and the Highland Circle

Stuðlagil’s towering basalt columns are the star here, but this tour goes well beyond the famous canyon. You’ll cross into Iceland’s remote eastern highlands, see the country’s deepest gorge, pause at a natural hot spring, and finish with the huge Kárahnjúkar dam and hydro plant.

I like the way the day combines dramatic geology with modern Icelandic engineering. I also like the chance to soak in a natural spring far from town, though you should know there is no changing room or other facility at the spring. The main drawback is the long amount of time on the road, plus a moderately challenging walk at Stuðlagil.

Key points

• Stuðlagil from Grund: View the canyon from renovated platforms and trails, with a safe aerial angle over the basalt columns.
• Iceland’s deepest gorge: See Hafrahvammagljúfur, a 200-meter-deep canyon also called Dimmugljúfur, or The Dark Canyon.
• A wild hot spring stop: Bring a swimsuit, but expect no changing room, shower, or other visitor facility.
• Highland engineering: Stop at Hálslón reservoir, Kárahnjúkar dam, and one of Europe’s biggest hydro power plants.
• Long but carefully paced day: The tour lasts eight hours, with several road sections and about three hours of sightseeing stops.
• Personal guiding: If Tinna leads your trip, you can expect local stories about Icelandic family life, fishing, and more.

Why this eastern Iceland tour is different

Many day trips from Seyðisfjörður focus on a single scenic stop. This one gives you a broader look at northeast Iceland. You’ll see a canyon shaped by basalt and glacial water, a vast gorge cut into the highlands, a warm natural spring, and a major power project.

That range makes the tour useful if you want more than a quick photo stop at Stuðlagil. You are not simply visiting one famous formation, then turning around. You are spending the day in a less settled part of Iceland, where roads, water, rock, and industry all share the same highland setting.

The route is especially appealing if you are staying in Seyðisfjörður or Egilsstaðir and do not have a four-wheel-drive vehicle. The eastern highlands are not the easiest place to explore independently, and a guided vehicle removes much of the planning burden. You can look out the window, keep your camera ready, and let the guide handle the route.

At $404 per person, this is not a cheap outing. Its value depends on how you use your day. You are paying for eight hours of transport, a guide, several remote stops, and access to sights that would take more effort to connect on your own. If your main goal is only Stuðlagil, a shorter and less expensive visit may make more sense. If you want the full highland circuit, the price is easier to justify.

Pickup in Seyðisfjörður or Egilsstaðir

You can join the tour in Seyðisfjörður or Egilsstaðir. In Seyðisfjörður, look for the tour name in the front window of the bus at the scheduled start time. In Egilsstaðir, pickup is at Hús handanna craft and design shop, 30 minutes after the tour begins.

This timing matters if you are comparing the two pickup points. Egilsstaðir is not an afterthought or an optional roadside meeting point. It is built into the schedule, so make sure you choose the correct town and allow time to get to the stated pickup spot.

The vehicle ride to Stuðlagil takes about 115 minutes. That is a substantial first leg, but it also shows what kind of day this is. You are going far into the region, not hopping between nearby attractions. Bring water, snacks, and something warm for the bus, since Icelandic weather can change quickly even when the morning looks calm.

The tour is conducted in English. One especially strong guide detail comes from Tinna, who has been praised for safe driving, local conversation, and flexibility with special requests. If Tinna is leading your outing, you may hear about Icelandic family culture and the fishing industry as well as the scenery. That sort of local context can make a long drive feel like part of the experience rather than dead time.

Stuðlagil from the Grund viewpoint

Stuðlagil is the visual centerpiece of the day. At Grund, you view the canyon from newly renovated platforms and trails, giving you a high, controlled angle over the rock walls and river below.

The canyon is known for its tall basalt columns. These dark, geometric formations look almost arranged by hand, but they were made by cooling volcanic rock. Their regular shapes create a strong contrast with the river running between them.

The water is often described as blue-green, though its color and clarity can shift. Stuðlagil is fed by a glacial river, so the scene changes with the season and water conditions. Do not arrive expecting one fixed postcard view. The river may look different from one visit to another, while the column walls remain the constant attraction.

You have about 40 minutes here. That is enough for photographs and a good look from the platforms, but it is not a long wilderness walk. The Grund viewpoint is useful because it gives you an aerial perspective without sending you onto the canyon floor or close to unstable edges.

The walk is moderately challenging, so wear hiking shoes with a firm sole. Wet weather can make paths less comfortable, and strong wind or rain may affect how long you want to stay outside. You should treat the platforms and trails as viewing areas, not as a place for casual scrambling.

I like this stop because it offers drama without demanding a full-day hike. You get a memorable canyon view, but the schedule still leaves room for the highland stops ahead. The tradeoff is that the visit is fairly brief, so photographers may need to work quickly if the light is good.

Hafrahvammagljúfur, the Dark Canyon

After Stuðlagil, the route continues for about an hour toward Hafrahvammagljúfur. This gorge reaches roughly 200 meters deep, making it Iceland’s deepest canyon. Its other name, Dimmugljúfur, means The Dark Canyon, a reference to how little sunlight reaches its lowest sections.

The scale here is different from Stuðlagil. Stuðlagil is famous for its orderly basalt columns and river color. Hafrahvammagljúfur is about depth, shadow, and distance. You look into a large cut in the earth rather than focusing on a single wall of rock.

You have around 40 minutes for the visit, including some hiking. That gives you time to walk, take photographs, and understand the shape of the gorge without turning the stop into a strenuous expedition. Still, this is not a suitable outing for everyone. The tour advises against joining if you have back or heart problems, and proper footwear matters.

This stop also rewards flexible expectations. The canyon’s name suggests darkness, and changing cloud or sunlight can alter the mood quickly. On a clear day, the depth is easier to read. In poor weather, the gorge may feel more severe and less open. Either way, you are seeing a side of Iceland that is less polished than the country’s famous roadside waterfalls.

Laugarvalladalur and the natural hot spring

About 15 minutes after Hafrahvammagljúfur, you reach Laugarvalladalur for roughly an hour. The main attraction is a natural hot spring surrounded by open wilderness.

This is one of the most appealing parts of the trip, but it requires the right mindset. There are no changing rooms or other facilities. Bring a swimsuit and consider wearing it beneath your hiking clothes, since changing beside a remote spring is not the same as using a public pool.

You should also bring a towel, although the supplied tour details specifically require a swimsuit and do not promise changing or bathing facilities. Pack carefully and keep your belongings secure and dry. The spring is a natural stop, not a managed spa.

The setting is the point. After two large canyon visits and several hours in the vehicle, warm water in a quiet highland valley gives the day a slower rhythm. You can soak, look around, and enjoy a very different kind of Icelandic experience.

Weather still matters. Warm spring water does not guarantee comfortable conditions outside it. Bring a rain jacket and warm layers for getting dressed again. If rain, wind, or cold makes soaking unpleasant, you can still use the hour for sightseeing, but the stop will be less rewarding than on a mild day.

Hálslón reservoir and Kárahnjúkar dam

The return route includes a stop at Hálslón reservoir and the Kárahnjúkar dam. These places add an important human-made element to a day otherwise dominated by rock, water, and remote scenery.

Hálslón is a large reservoir connected with the Kárahnjúkar power project. The dam and hydro plant show how Iceland uses its powerful rivers for electricity. You are not only looking at scenery here. You are seeing infrastructure on a very large scale, set against the highlands.

The Kárahnjúkar Hydropower Plant is described as one of the biggest in Europe. You have about 15 minutes for the visit and photographs, so expect a concise stop rather than a full facility tour. The value is in seeing the dam and power project in person, then comparing its straight lines and engineered surfaces with the natural canyons earlier in the day.

Some people will find this stop fascinating. Others may prefer another natural viewpoint. I would keep it, because it gives the route a useful point of contrast. Iceland is often presented as untouched wilderness, but this region also shows the decisions involved in using that wilderness for energy.

The eight-hour pace and what to bring

The full outing lasts eight hours. The listed sightseeing time adds up to about three hours, while the rest is spent traveling between stops. That is a good balance for a remote route, but you should be comfortable with long stretches in a bus or coach.

The day is not a nonstop hike. You will walk at Stuðlagil and Hafrahvammagljúfur, but the stops are broken up by transport. The natural spring offers a chance to rest, though getting in and out can take more effort than using a standard swimming pool.

Bring:

• Warm clothing and rain gear
• Hiking shoes
• Water and snacks
• A camera
• A swimsuit
• Personal items for the hot spring

Meals and drinks are not included, so do not count on buying lunch along the route. Snacks are particularly important because the schedule is built around remote highland stops rather than restaurants.

I would dress in layers. You may feel warm while walking, cool during a photo stop, and wet or windblown by the time you reach the spring. The weather can shift rapidly, and the right clothing will make the difference between a pleasant day and a tiring one.

Who will get the most from this tour

This tour suits you if you want to see several major sights in one day without driving yourself. It is a strong choice for people based in Seyðisfjörður or Egilsstaðir who want a guided route into the eastern highlands.

It also suits curious visitors who enjoy variety. You get volcanic rock, glacial water, a deep gorge, hot water, a reservoir, and hydroelectric infrastructure. That mix makes the tour more substantial than a single scenic stop.

You should think twice if you dislike long vehicle rides, need a highly accessible route, or want a relaxed day with minimal walking. The tour is not suitable for people with back or heart problems, and the walk at Stuðlagil is moderately challenging.

The group size is not provided, so you should not book expecting either a private outing or a small group. The vehicle is described as a bus or coach, and the available feedback highlights a capable off-road vehicle, but the exact vehicle and group setup can vary.

Should you book the Highland Circle?

Book this tour if you want a full day of eastern Iceland and value having someone else manage the remote route. Stuðlagil and Hafrahvammagljúfur give you two very different canyon experiences, while the hot spring and Kárahnjúkar stops keep the day from feeling repetitive.

The $404 price is easiest to defend if you do not have your own suitable vehicle and would otherwise need to arrange several separate trips. It is harder to justify if you only want a quick look at Stuðlagil or prefer to explore at your own pace.

Before booking, make sure you are ready for eight hours, bring food and rain gear, and accept the rustic hot spring setup. If those conditions suit you, this is a thoughtful way to see a remote corner of Iceland, with scenery, local conversation, and a clear look at how the country’s wild places are also used.

FAQ

How long does the tour last?

The tour lasts 8 hours.

Where can I join the tour?

You can join in Seyðisfjörður or Egilsstaðir.

Where is pickup in Seyðisfjörður?

Pickup is at the tour start time. Look for the tour name in the front window of the bus.

Where is pickup in Egilsstaðir?

Pickup is at Hús handanna craft and design shop, 30 minutes after the tour start time.

What language is the tour conducted in?

The live tour guide speaks English.

How much walking is involved?

The tour includes a moderately challenging walk at Stuðlagil and hiking at Hafrahvammagljúfur. Hiking shoes are recommended.

Do I need to bring a swimsuit?

Yes. A swimsuit is recommended for the natural hot spring visit.

Are changing rooms available at the hot spring?

No. The hot spring has no changing room or other facilities.

Are meals and drinks included?

No. Meals and drinks are not included, so bring snacks and water.

Can I cancel the booking?

You can cancel up to 24 hours in advance for a full refund. You can also reserve now and pay later.