Loren dam

The ten German Halligen are grouped in a circle around the island of Pellworm. These "young" islands only exist in the North Frisian Wadden Sea. Their land masses protrude a few meters from the sea and are regularly flooded by strong floods (colloquial: "Landunter"). Their residents live in houses on artificial embankments, the terps. These are high enough to withstand "normal" storm surges.