A 25 km volcanic fissure with 130+ craters -- site of a catastrophe that reshaped Iceland and touched a continent
The 1783-1784 Laki eruption was one of the most consequential volcanic events in recorded history. Over eight months, a 25 km fissure tore open, producing 130+ craters that poured out roughly 14 cubic kilometers of basalt lava and released 120 million tonnes of sulfur dioxide into the atmosphere.
The consequences were catastrophic. Fluorine-contaminated ash poisoned livestock and crops across Iceland, ultimately killing an estimated 20-25% of the population through famine and disease -- a period Icelanders call the Moduhardindi, or "Mist Hardships." The sulfur haze drifted across Europe, causing crop failures from Britain to France. Some historians argue that the resulting food shortages contributed to the social unrest that helped trigger the French Revolution six years later.
Today, the crater row is one of the most hauntingly beautiful landscapes in Iceland. Thick green moss covers the lava and craters, creating a vivid contrast with the dark volcanic rock beneath. On a calm, clear day, the silence is profound -- you are standing in one of the most remote corners of Iceland, on the site of a catastrophe that reshaped a nation and touched a continent.
Lakagigar has no facilities whatsoever. Bring food, water, warm clothing, and extra fuel. The access roads (F206/F207) are among the last to open each summer.
A moderate hike of roughly 200 meters of elevation gain leads to the top of Laki mountain at the center of the fissure. From the summit, you can see the entire 25 km crater row stretching in both directions -- one of the most dramatic volcanic panoramas in Iceland. Allow about 1-2 hours round trip from the parking area.
Several marked trails lead through and between individual craters, some still bearing the scars of the eruption. The moss coverage varies -- some craters are vividly green, others still raw and dark. The scale only becomes apparent on foot.
This waterfall, whose name means 'Beautiful Falls,' sits along the access road and makes a worthwhile stop on the way in or out. It is less visited than most Icelandic waterfalls and offers a moment of natural beauty to contrast with the volcanic devastation of the craters.
2-3 hours one way
From Route 1 near Kirkjubaejarklaustur, turn north onto F206. Rough gravel roads with river crossings. High-clearance 4WD required -- mid-size SUV minimum, larger vehicle recommended. Roads are among the last to open, typically not until July.
$200-350 per person (recommended)
Given the difficulty of the roads and the historical significance of the site, a guided tour adds both practical safety and interpretive depth. Operators from Kirkjubaejarklaustur and Vik run day trips.
Unlike other highland destinations
Unlike Landmannalaugar or Thorsmork, there is no scheduled highland bus to Lakagigar. You need either your own 4WD or a guided tour.
July through early September. The access roads are among the last to open and first to close. Check road.is carefully before attempting the drive.
August typically offers the most reliable access and weather.
Clear weather makes a significant difference -- the summit views require visibility to appreciate the full 25 km crater row.
No toilets, water, shelter, fuel, or cell coverage at the craters. Bring everything you need including food, water, warm clothing, and extra fuel for the return drive. Plan for the full day to be self-supported.
The thick green Racomitrium moss grows roughly 1 cm per year. A single footstep off the marked trail creates damage visible for decades. Stay on designated paths without exception.
No drones without permission, no off-trail walking, no camping outside designated areas. Standard park regulations are enforced.
Between the 2-3 hour drive each way, the summit hike, and time exploring the craters, a visit to Lakagigar requires at minimum 8-10 hours from Kirkjubaejarklaustur. The historical context -- the scale of death, the European haze, the near-abandonment of Iceland -- transforms the landscape from beautiful to genuinely moving.
The nearest town, with accommodation, fuel, and dining. Your base for visiting Lakagigar.
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