Gatklettur natural basalt sea arch at Arnarstapi on the Snæfellsnes Peninsula in West Iceland, with waves crashing beneath the rocky formation.

    Gatklettur sea arch at Arnarstapi Cliffs on the Snæfellsnes Peninsula, West Iceland — a dramatic basalt rock arch carved by North Atlantic waves.

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    Gatklettur Arch

    Landmark

    Gatklettur Arch is a natural basalt sea arch located near Arnarstapi on the Snæfellsnes Peninsula. The formation spans a narrow opening above the Atlantic, shaped by sustained coastal erosion. Its curved aperture creates a defined framing element within a horizontal shoreline composition.

    64.76590, -23.62190

    Gallery

    Quick Facts

    Access

    Short Walk

    5–15 min

    Elevation Gain

    15 m

    Best Light

    Golden Hour
    Overcast

    Light works best when low-angle sun strikes across the arch because angled illumination enhances rock texture and increases separation between the opening and surrounding sea.

    Why This Light

    Low-Angle Relief
    Backlight / Spray

    Season

    Year-Round Stable

    In summer, extended daylight enhances detail within the rock texture and surrounding coastline. In winter, stronger swells and lower sun angles increase contrast between the arch and open water.

    Crowds

    Busy Midday

    Restrictions

    Seasonal Access Risk

    Cliff-edge exposure and wind conditions may affect safe positioning near the viewpoint.

    Photography Notes

    The arch reads strongest when isolated against open water to preserve the negative space within the opening. Slight elevation allows the curved span to separate cleanly from the horizon line. Foreground rock can introduce depth while maintaining emphasis on the aperture form.