Raufarhólshellir Lava Tube — Iceland

About this spectacle

Raufarhólshellir is one of Iceland's longest and most accessible lava tubes, formed by volcanic flows that left a hollow underground passage stretching hundreds of metres beneath the surface. Visitors descend into a cathedral-like tunnel where twisted lava formations line the walls and ceiling — rippling basalt, lava pillars, and frozen flow features in shades of red, black, and ochre. The air is cool and still, a stark contrast to the wind-swept Reykjanes Peninsula above. Guided tours lead visitors through pools of reflected torchlight, past dramatic stalactite-like lava drips and collapsed ceiling sections that let shafts of light pierce the darkness. The scale of the main chamber is genuinely arresting, giving a visceral sense of Iceland's volcanic origins. Warm layers are essential, and the sense of moving through the living geology of the island makes this one of the more memorable subterranean experiences in the North Atlantic.

When to go

Jan — Dec, peak May — Aug

Getting there

Nearest airport: KEF. Nearest city: Reykjavík.

Booking options

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