Raufarhólshellir Underground Adventure
Venture deep into Raufarhólshellir, one of Iceland's largest lava tunnels, exploring 1,360 meters of authentic caving terrain with hidden underground wonders illuminated only by headlamps.
The Into the Glacier ice tunnel experience offers an extraordinary opportunity to venture deep inside Langjökull, Iceland’s second-largest glacier, through the world’s first tourist tunnel system engineered within glacier ice. Beginning at Húsafell Activity Center, your adventure starts with a thrilling super truck ride across the glacier surface. These massive vehicles climb steadily toward the tunnel entrance while providing panoramic highland views.
The 30-minute journey includes guide insights about glaciology and the remarkable engineering required. The tunnel system extends over 500 meters, revealing centuries-old compressed ice. Professional lighting illuminates crystalline blue ice, creating an ethereal atmosphere at a constant 0°C year-round. Langjökull glacier is a centerpiece of the Silver Circle, and you can find sample itineraries featuring this experience in our one-day Silver Circle route planner.
To warm up after this chilling experience, try to have a quick soak in the geothermal pools of the area: The Húsafell Canyon Baths or the Krauma Spa
Inside the tunnel network, pathways wind through passages carved entirely from glacial ice. Walls contain ice formed centuries ago from snowfall compressed into dense, brilliant blue ice. Guides explain the formation process, pointing out visible layers representing different time periods. These frozen archives contain valuable climate research information.
Several chambers offer unique perspectives on the glacier’s internal structure. Non-slip surfaces and safety equipment make this experience accessible to families with children as young as eight. The stable environment contrasts with seasonal natural ice caves.
This experience would be a wonderful addition to our 2 day private tour in West Iceland.
Guides provide educational commentary about glacier dynamics and climate change. Langjökull has been shrinking measurably, making this tunnel system both attraction and scientific monument. The guides explain how glaciers flow, calve, and respond to temperature changes.
The 45-minute walk passes quickly. Before returning, many visitors take time in the glacier’s chapel chamber where couples have exchanged wedding vows. This year-round experience offers unmatched opportunity to step inside one of nature’s most impressive geological features.
Venture deep into Raufarhólshellir, one of Iceland's largest lava tunnels, exploring 1,360 meters of authentic caving terrain with hidden underground wonders illuminated only by headlamps.
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