Quick guide
- Type
- Volcanic crater lake
- Region
- Fjallabak highlands
- Best for
- Landmannalaugar self-drive days
- Time
- About 20 to 45 minutes
- Access
- Highland-road checks matter
- Nearby
- Ljótipollur and Frostastaðavatn

Bláhylur, also called Hnausapollur, helps highland self-drivers decide whether a quick crater-rim pause near Landmannalaugar deserves time alongside Ljótipollur, Frostastaðavatn, the F208 approach, and the main hiking area.
Quick guide
Bláhylur is worth a pause when your highland day already passes the rim, but it should not be the reason to force F208 into a tight plan.
Bláhylur, also called Hnausapollur, hides its payoff until you reach the edge: a blue crater lake set inside dark volcanic walls in the Fjallabak highlands. That reveal is the reason to stop.
The cleanest use is on a day already shaped around Landmannalaugar, Ljótipollur, or the F208 approach. If road conditions, daylight, or hiking time are already stretched, keep the crater optional.
Photo guide
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The stop works best when you have time to look from the rim, not only from the approach road.
Worth the stop?
The view is simple but strong: turquoise water, black and rust-colored crater walls, mossy slopes, and open highland space.
Bláhylur is not a long attraction. It is a viewpoint with a sharp color contrast. The lake looks especially memorable because the water sits low inside the volcanic bowl while the road and rim stay above it.
That makes the stop more rewarding than it looks from below. From the track or rim, the lake suddenly reads as a whole crater rather than just another highland pond beside the route.
The main planning question is not whether Bláhylur is pretty. It is whether it improves a day already full of highland scenery.
If the day is about Landmannalaugar hiking, Bláhylur is a short rim pause before or after the main trail time. If the day is about crater lakes, compare it with Ljótipollur and Frostastaðavatn before adding every nearby stop.
Fjallabak rewards slower travel, but the landscape can tempt travelers into too many short pullouts. Choose the crater, lake, canyon, or hiking stop that changes the day most, then protect the time needed for road conditions.
This is a highland-road stop, so the practical decision belongs before the drive, not at the crater rim.
Before treating Bláhylur as a fixed stop, check official road conditions, weather warnings, and highland safety guidance. The route can feel completely different with poor visibility, wind, rain, soft shoulders, or changing surface conditions.
The lake also sits within the wider Fjallabak protected landscape. Stay on permitted tracks and durable surfaces, avoid shortcutting across fragile ground, and follow ranger or posted guidance where it applies.
The lake is visually strong, but highland days work better when every stop earns its time and driving margin.
Skip or shorten Bláhylur when your main goal is a full Landmannalaugar hike, when the weather is closing in, or when the day already includes Sigöldugljúfur and several lake viewpoints.
Give it time when you want a clear crater-lake photograph, a quiet rim moment, and a better sense of the volcanic landscape before continuing through Fjallabak.
Check highland route conditions before driving.
Use official forecasts and warnings for highland timing.
Review conservative guidance for rough highland roads.
Follow protected-area conduct and ranger guidance.
Planning map
Use nearby markers and base towns to judge how this stop fits before you open directions.
Interactive planning map for Blahylur (Hnausapollur) Lake