Seydisfjordur Waterfalls: Layers of Stone and Water

Glaciers carve the fjord

Seydisfjordur's dramatic landscape tells the story of ice age engineering. During the last glacial period, massive ice sheets moved down from the highlands, grinding and widening the valley that became this fjord. The glacier's immense weight and movement carved U-shaped walls that rise steeply on either side, a hallmark of glacial erosion visible throughout the eastern region. As the climate warmed and the ice retreated roughly 10,000 years ago, meltwater flowed through the newly carved valley, further shaping the terrain and leaving behind the fertile lowlands where the fishing village of Seydisfjordur now stands.

The glacier's work created the conditions for the Fjardara River to flow as it does today. Where the ice was thickest, it cut deepest, which explains why the valley descends in stages rather than as a smooth slope. This stepped topography sets the stage for multiple waterfalls further inland, each one marking a point where the river drops between these glacially carved terraces. The fjord itself opens to the sea at an elevation barely above sea level, while the inland valley rises progressively, a direct result of the ice age's sculpting hand.

Layers of basalt like a cake

Walk the slopes around Gufufoss and you will notice the rock face is striped, layer upon layer of dark basalt stacked like a geological cake. These formations are the legacy of Iceland's volcanic past, accumulated over millions of years as successive lava flows cooled and solidified. Each layer represents a distinct eruption event, and the consistency of the basalt columns across the eastern fjords proves that this region experienced repeated volcanic activity long before humans arrived. The columnar jointing typical of basalt gives the cliffs an almost geometric appearance, as though carved by design rather than formed by nature.

This layered basalt is not merely decorative. The different densities and mineral compositions of each layer affect how water flows through the rock and how quickly erosion occurs. Softer layers wear away faster than harder ones, which is why many Icelandic waterfalls do not fall straight but instead cascade over multiple steps. At Gufufoss, you can observe this selective erosion in action as the Fjardara River exploits the weakest points in the basalt stack, creating the distinctive drop you see today. The geological record visible in these striped cliffs extends back roughly 15 to 16 million years, making this landscape a window into Iceland's deep volcanic history.

Misty spray rises from Gufufoss, where glacial meltwater meets basalt layers

Milky water at the drop

The water flowing over Gufufoss is distinctly pale, almost white, which surprises many visitors expecting clear Arctic streams. This milky appearance comes from glacial flour, fine sediment particles suspended in the water that originates from glaciers still present in the highlands. As glaciers move, they grind bedrock into powder finer than sand. When meltwater carries this sediment downstream, light bounces off the suspended particles, creating the characteristic cloudy look. The Fjardara River's white color is therefore a direct signal that glacial melt feeds this system, connecting the waterfall visually to the ice fields many kilometres inland.

This suspended sediment is not merely visual information; it also indicates the power of the water and the ongoing work of erosion. The milky appearance intensifies during spring melt when glacial runoff peaks, and it may lighten during drier months when less meltwater enters the system. Visitors to this tour will see the waterfall under varying conditions depending on the season and recent weather patterns. The presence of glacial flour also means the river deposits fine sediment as it slows, which has shaped the floodplain and influenced where the village of Seydisfjordur could safely develop its harbor and buildings.

Iceland's first power station

In 1913, engineers recognized the Fjardara River's potential and built Iceland's first alternating-current hydroelectric power station on its banks. This was a significant milestone for a nation that had relied on turf, driftwood, and imported coal. The station harnessed the river's constant flow and elevation drop to generate electricity, a transformation that enabled new industries to develop in Seydisfjordur and reduced reliance on imported energy. The power station represented cutting-edge technology for its time, and its construction required skilled workers and materials transported across challenging terrain. Though the original facility has been superseded by modern installations, its historical importance remains central to understanding how eastern Iceland developed its economy.

The power station made possible the fish-processing operations that became Seydisfjordur's economic engine in the early 20th century. Refrigeration equipment, lighting, and mechanized processing all depended on reliable electricity. The availability of hydropower at Gufufoss essentially unlocked the commercial potential of the fjord's fishing grounds. Today, the river still generates electricity, though modern turbines and transmission systems bear little resemblance to the 1913 equipment. On this tour, your guide will point out the infrastructure along the Fjardara and explain how a natural feature became an industrial asset.

Fish and folklore of the falls

Seydisfjordur's early fishing industry was built on the abundance of fish in the cold Atlantic waters and the processing facilities enabled by hydroelectric power. Fish plants operated around the clock during peak seasons, salting, drying, and smoking catches to preserve them for export. The river provided not only electricity but also fresh water for processing, making the location doubly valuable. Icelandic fishermen still operate from Seydisfjordur today, and the legacy of that industrial period shapes the village's character and its relationship with the surrounding landscape. The waterfalls that made processing possible have become emblems of the region's industrial heritage.

Local folklore attaches various stories to the Gufufoss waterfall and the Fjardara valley, as Icelandic tradition does to many dramatic natural features. Tales of hidden settlements, protective spirits, and warnings against trespassing in certain areas have passed down through generations. While specific folklore details vary, the common thread is reverence for the power of falling water and the danger of the river in spate. These stories served practical purposes, often keeping people away from genuinely hazardous areas during floods. Today, visitors to this tour gain perspective on how Icelandic communities have always understood their landscape as both resource and mystery, shaped by forces far larger than human scale.

The tour itinerary and what to expect

This 5-hour shore excursion departs from Seydisfjordur Port and explores four major stops across the northeastern region. The tour includes pickup and drop-off directly from the cruise ship terminal, eliminating the need to arrange separate transport. A professional guide accompanies your group throughout, providing interpretation of the geological, historical, and cultural features you encounter. You will visit Hafnarholmi and Lindarbakki, small settlements and landmarks that offer context for understanding the fjord's settlement patterns and how the landscape shaped human activity. The journey culminates at Gufufoss, where you have time to experience the waterfall up close and absorb the scale of the glacially carved valley.

Planning your visit

The eastern fjords are accessible year-round, though weather and daylight vary significantly by season. Summer offers long daylight hours and milder conditions, while winter presents shorter days but often dramatic lighting and fewer other visitors. The 5-hour duration allows time for photography, questions, and reflection at each stop without requiring an overnight stay away from your cruise ship. Bring weatherproof outerwear regardless of season, as conditions at open viewpoints change rapidly. The tour includes free WiFi, so you can stay connected and share images as you explore. Your guide can recommend the best vantage points for photography and explain details you might otherwise miss in the landscape's complex geology and history.

Before you book