Hikers trekking through fresh lava fields toward Fagradalsfjall volcano crater on the Reykjanes Peninsula

Fagradalsfjall Volcano Hike: Trek to the 2021 Eruption Crater

Trek 7km through fresh lava fields to the viewpoint overlooking Fagradalsfjall's 2021 eruption crater. A guided hike across terrain that didn't exist five years ago, on the volcanic Reykjanes Peninsula.

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Tour Details

Duration:
3H
Season:
All year
Max People:
6
Difficulty:
Moderate

Highlights

  • 7km round-trip guided volcano hike
  • 300m elevation gain to crater viewpoint
  • Walk through the 2021 eruption lava fields
  • Panoramic views over Reykjanes Peninsula
  • Meet on location
  • Minimum age 8 years
  • Year-round availability (weather permitting)
  • Customizable to longer 16km or 20km routes

Gallery

Hiking to Fagradalsfjall: Where It All Started

Fagradalsfjall became world-famous in March 2021 when a fissure eruption broke through the earth on the Reykjanes Peninsula, producing Iceland’s first volcanic eruption in this area in nearly 800 years. For six months, lava fountained from the Geldingadalir valley, creating entirely new land. This hike takes you directly to the viewpoint overlooking that crater.

The 7km round-trip trail crosses solidified lava that is still geologically fresh — rough-textured, sharp-edged, and unlike anything you will walk on elsewhere. The 300-meter elevation gain is steady but manageable, and your guide sets a pace suited to your group. Along the way, the geology tells the story: collapsed lava tubes, rope lava formations, and color variations in the rock that reveal how the eruption evolved.

Volcanic lava formations along the Fagradalsfjall hiking trail

Extend Your Hike or Combine with Reykjanes

The standard hike reaches the 2021 eruption crater, but the Reykjanes Peninsula has seen multiple eruptions since then. For experienced hikers, the route can be extended to a 16km round trip covering both the 2021 and 2022 eruption sites, or a 20km round trip adding the 2023 site as well. Contact us to discuss these options.

This hike also pairs naturally with a tour of the wider Reykjanes Peninsula. Our Reykjanes & Fagradalsfjall Hike tour combines both into one full day. For the broader Reykjanes experience without the hike, see our Colors of Reykjanes day tour.

Pickup from Reykjavík, Grindavík, Blue Lagoon and Keflavík Airport can be arranged. Contact us to organize transportation to the trailhead.

For more on the volcanic activity that created this landscape, read our guide: How to See Lava in Iceland. You can also explore the eruptions in pictures, learn about the volcanic history of Reykjanes, or browse our ultimate Reykjanes guide. For an aerial perspective, consider a helicopter tour over the eruption sites.

The Fagradalsfjall eruption crater with surrounding lava fields

Important Information

This hike operates year-round but can be cancelled depending on weather conditions or volcanic activity in the area. The Reykjanes Peninsula remains an active volcanic zone, and safety is always the priority. Your guide monitors conditions and will communicate any changes before the hike.

Minimum age: 8 years. Participants should be comfortable hiking on uneven, rocky terrain for approximately 3 hours.

Frequently Asked Questions About the Fagradalsfjall Hike

How difficult is the Fagradalsfjall hike? The hike is moderate: 7km round trip with 300m elevation gain. The terrain is uneven volcanic rock. Reasonable fitness is required. Minimum age is 8 years.

What should I bring for the Fagradalsfjall hike? Sturdy hiking boots with ankle support, layered clothing, waterproof jacket, water, and snacks. The weather on the Reykjanes Peninsula can change quickly. Hiking poles are recommended but not required.

Can I do a longer hike to see more eruption sites? Yes. The standard hike covers the 2021 eruption crater. You can extend to a 16km route covering both 2021 and 2022 sites, or a 20km route covering 2021, 2022, and 2023 eruption sites. Contact us for details.

Is the Fagradalsfjall hike available year-round? Yes, the hike operates year-round. However, it can be cancelled due to severe weather conditions or volcanic activity in the area. Winter hikes require adequate daylight planning.

What You'll Visit

Hikers walking through fresh solidified lava fields on the Fagradalsfjall trail
The hike begins at the trailhead on the Reykjanes Peninsula, south of Reykjavík. Your guide leads you across a landscape reshaped by the 2021 Fagradalsfjall eruption — the first volcanic activity in this area in nearly 800 years.

The path crosses solidified lava flows where the rock is still young and sharp-edged. Twisted rope lava, collapsed tubes, and volcanic textures surround you. Your guide explains how the eruption unfolded over six months, how the lava spread through the Geldingadalir valley, and what makes the Reykjanes volcanic system different from Iceland's other active zones.
Viewpoint overlooking the Fagradalsfjall eruption crater with panoramic views of the Reykjanes Peninsula
After a steady 300-meter climb, you reach the viewpoint overlooking the main crater of the 2021 eruption. The crater itself is a raw, steep-walled bowl where lava fountained for months, building up the cone that now dominates the skyline.

From this vantage point, the scale of the eruption becomes clear: lava fields stretch across the valley below, and on clear days the panorama extends from Keilir mountain to the Atlantic Ocean. Your guide shares the science behind the eruption sequence that has kept the Reykjanes Peninsula volcanically active since 2021.

Book Your Tour

Meet on Location

Join the tour at the starting location with your own transportation.

Book Meet on Location

Personalize Your Tour

Have specific requests or questions? Let us tailor this experience to your needs.

Prefer to talk? Schedule a phone call with us.

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