Formation
1875
Created by a massive Plinian eruption on March 29, 1875, one of Iceland's largest in recorded history
Víti at Askja – Warm Crater Lake in Iceland's Highlands
A warm, milky-blue crater lake born from the devastating 1875 eruption, hidden deep within Iceland's highland interior
Updated February 1, 2026By the Iceland.org Travel Team
Location
Central Highlands
Askja caldera, Dyngjufjöll mountains
Víti at Askja is one of Iceland's most iconic highland destinations, a geothermal crater lake cradled within the vast Askja caldera in the Dyngjufjöll mountain range. The name Víti means "Hell" in Icelandic, given to the crater after the catastrophic Plinian eruption of March 29, 1875, which deposited volcanic ash across Scandinavia and triggered a wave of Icelandic emigration to North America. Today the crater holds a warm, milky-blue lake fed by geothermal activity, its ethereal color created by dissolved silica and sulfur compounds. Reaching this remote site requires a challenging drive along highland F-roads, making it one of Iceland's most rewarding adventures.
Safety + sourcing
Last updated: 2026-02-01
The descent into Víti is steep and can be dangerous when wet. Check volcanic activity alerts and road conditions before visiting. A 4WD vehicle is mandatory for F88.
Sources to check
Access Road
F88
Highland F-road requiring a 4WD vehicle with river crossings, typically open late June to September
Water Temperature
~22°C
Geothermally heated water stays warm year-round, though temperatures can vary by location in the lake
What to Expect
Milky-Blue Crater Lake
The geothermally heated lake glows an otherworldly milky-blue, colored by dissolved silica and sulfur from underground hot springs.
Steep Crater Descent
A challenging trail descends from the rim to the water's edge. The slope is loose and can be slippery, requiring careful footing.
Öskjuvatn Lake
Adjacent to Víti sits Öskjuvatn, Iceland's deepest lake at 220 meters, filling the main Askja caldera with cold, dark water.
Remote Highland Setting
The journey through the highland desert landscape is an experience in itself, with vast lava fields, black sand, and mountain vistas.
River Crossings
The F88 route includes several river crossings that vary in depth and difficulty depending on rainfall and snowmelt conditions.
Drекki Hut
The Drекki mountain hut near the trailhead offers basic accommodation and camping for those who wish to stay overnight in this remote area.
Getting There
Askja is located deep in the central highlands, approximately 200 km from Akureyri. Take Route 1 east from Akureyri to the junction with Route 901, then follow the F88 highland road south toward the Dyngjufjöll mountains. The F88 is a rough highland track with multiple river crossings and is only accessible by 4WD vehicle. The road typically opens in late June or early July. From the Drekki parking area, a 2.5 km hiking trail leads to the Víti crater. Many visitors join organized super-jeep tours from Akureyri or Mývatn. Always check road.is for current conditions and leave a travel plan at safetravel.is.
Best Time to Visit
The window to visit Víti at Askja is limited to the summer months, typically from late June through September, when the F88 highland road is open. July and August offer the most reliable access, the warmest temperatures, and the longest daylight hours. Early and late season visits may be affected by snow on the road or at the crater. Weather in the highlands can be unpredictable even in summer, so prepare for cold, wind, and rain regardless of the forecast. Early morning visits often provide calmer conditions and fewer crowds.
Planning help
Víti at Askja FAQs
Quick answers with safety notes where it matters.