Fimmvörðuháls Hike Guide

The Fimmvörðuháls hike is one of Iceland's most iconic and challenging treks, offering an intense journey through some of the country’s most diverse landscapes. The trail covers roughly 25 kilometers (15.5 miles) and typically takes between 8 to 12 hours to complete, depending on weather conditions, hiking pace, and rest stops. The route links the majestic Skógafoss waterfall in the south with the lush Þórsmörk valley in the north, traversing a high mountain pass that provides awe-inspiring views of glaciers, waterfalls, volcanic craters, and rich highland valleys. For its extraordinary scenery, the Fimmvörðuháls hike has earned a reputation as one of the world's most scenic day hikes, though it’s best suited for experienced hikers due to its demanding nature and rapidly changing weather.

Route Breakdown and Key Highlights

Starting Point: Skógafoss to the Waterfall Section

The journey begins at Skógafoss, a powerful 60 meter high waterfall that is one of Iceland’s most famous natural landmarks. From here, hikers follow a trail that climbs steeply alongside the Skógá River, where they encounter an impressive series of more than 20 waterfalls. Each waterfall is unique, varying in size, shape, and flow, creating a spectacular introduction to the hike. The trail in this section is well-marked and often visited by day hikers looking for a shorter trek. However, the path becomes increasingly challenging and remote as you ascend.

Ascent to Fimmvörðuháls Pass: Entering Volcanic Terrain

After the waterfall section, the trail continues up into more barren terrain as it climbs toward the Fimmvörðuháls passbetween two of Iceland’s most famous glaciers, Eyjafjallajökull and Mýrdalsjökull. This part of the hike is exposed, with steep sections that can be difficult in adverse weather. Along the way, hikers pass by highland plateaus and lava fields with incredible views of both glaciers, creating a stark contrast between the black volcanic earth and bright white ice.

A notable highlight of this section is the sight of Magni and Móði, two craters formed during the 2010 eruption of Eyjafjallajökull. Named after the sons of Thor, these craters are still warm and emit geothermal steam in some areas. The ground around the craters is often stained red, black, and orange, with lava fields that appear freshly formed, reminding hikers of Iceland’s active and unpredictable volcanic nature. The Magni and Móði craters provide a unique resting point and offer a glimpse into the dramatic geological forces that have shaped the Icelandic landscape.

Descending Toward Þórsmörk: From Volcanic Rock to Verdant Valleys

After reaching the pass, the trail begins its descent toward Þórsmörk. This section offers breathtaking panoramas as the stark volcanic terrain transitions into green valleys dotted with birch trees and moss-covered hills. The descent provides striking views of the Krossá River valley and the diverse ecosystems below. The final stretch into Þórsmörk is a remarkable contrast to the barren landscapes above, featuring verdant forests, rich plant life, and winding rivers. The Þórsmörk valley itself is one of Iceland’s most beautiful natural reserves, surrounded by steep mountains and dotted with cozy huts, making it a peaceful and scenic endpoint to this challenging hike.

Key Challenges on the Fimmvörðuháls Hike

The Fimmvörðuháls trail’s beauty is tempered by the challenges that come with it, particularly for those unfamiliar with Iceland’s unpredictable weather and rugged terrain.

• Weather Variability: The weather on the Fimmvörðuháls trail can change abruptly. Clear skies can turn to fog, rain, or even snow at higher elevations, even in summer. Strong winds are also common, especially on the high pass. Be prepared with layers and waterproof clothing.

• Temperature Differences: Due to the varying altitude, temperatures can be chilly at the summit, even on warm days. As you climb, it’s not unusual to encounter snow or sleet, making the right gear essential.

• Navigation: While the trail is generally well-marked, visibility can drop drastically in fog or heavy rain. Carrying a GPS, map, or navigation app is essential for staying on track, especially in poor weather conditions.

• River Crossings and Steep Sections: While there aren’t major river crossings, the trail has steep sections, especially on the ascent and descent. Trekking poles can help maintain balance on slippery or uneven surfaces.

Essential Gear and Preparation

Packing the right gear is critical for a safe and enjoyable experience on the Fimmvörðuháls hike. Here’s a list of recommended items:

• Weatherproof Layers: Iceland’s weather demands waterproof and windproof clothing. Bring a base layer for moisture control, an insulating layer for warmth, and a waterproof shell for protection from wind and rain.

• Sturdy Hiking Boots: Waterproof hiking boots with good ankle support are essential for the varied terrain and help protect against wet ground and rocky paths.

• Trekking Poles: These can help with balance on steep sections, rocky paths, and slippery areas, especially during the descent.

• Food and Water: There are no services on the trail, so bring enough food and high-energy snacks to fuel your hike. You can refill water bottles from rivers, but a water filter or purification tablets are recommended.

• GPS and Map: Iceland’s highland trails can be disorienting in poor visibility, so always bring a reliable navigation tool, either a GPS device or a map with a compass.

• Emergency Shelter and First Aid Kit: Due to the challenging conditions, bring a basic first-aid kit and an emergency blanket or shelter.

Transportation and Logistics

To begin the Fimmvörðuháls hike, most hikers travel from Reykjavik to Skógar by bus or rental car, as Skógafoss is a popular starting point. You can leave your car at Skógar if you're returning the same day or book transportation from Þórsmörk back to Reykjavik in advance, as seats on buses are limited and often sell out. Some hikers choose to extend their journey by linking the Fimmvörðuháls hike with the Laugavegur Trail, turning this day hike into a multi day adventure. This option requires additional preparation, as you’ll need camping equipment or hut reservations along the Laugavegur Trail to accommodate the extended itinerary.

Tips for a Safe and Enjoyable Fimmvörðuháls Hike

1. Start Early: The hike is long and challenging, so starting early allows you to pace yourself and avoid hiking in the dark.

2. Check the Weather Forecast: Iceland’s weather can be severe, so check the forecast on Vedur.is and consider postponing if conditions are unfavorable.

3. Stay Hydrated and Well-Fed: Bring enough food and water to last the full day, as there are no facilities along the trail.

4. Plan for Transportation: Pre arrange a bus or shuttle from Þórsmörk back to Reykjavik or your next destination. Buses are limited and may require advanced booking.

5. Respect the Environment: Fimmvörðuháls is a protected area. Stay on marked paths, avoid disturbing wildlife, and carry out all waste to help preserve Iceland’s natural beauty.

The Fimmvörðuháls Experience: A Journey Through Iceland’s Geologic Heart

The Fimmvörðuháls hike is a journey through Iceland’s dramatic geological landscapes, where the natural forces of fire and ice are evident at every turn. Hikers witness everything from waterfalls and glaciers to volcanic craters, vast valleys, and lush forests, providing a microcosm of Iceland’s diverse environment in a single day. While it’s a strenuous trek requiring preparation, it’s an unforgettable experience for those ready to embrace Iceland’s rugged beauty and unpredictable climate.