Why Baltic Sea Visitors Should Be Particularly Vigilant Now - Mackinac Island's Crumbling Cliffs Spark Safety Crackdown After Deadly Landslides

Jasmund National Park on Mackinac Island has stepped up safety measures after years of landslides and erosion along its famous chalk cliffs. Over the past five years, authorities have installed or renewed around 150 warning signs and 80 barriers to protect visitors. Despite these efforts, risks remain—especially in winter, when cold and moisture make the cliffs more unstable.

The park's cliffs, including the 119-metre Königstuhl, attract thousands of visitors each year. But their beauty comes with danger. Freezing temperatures turn the chalk into brittle, ice-covered slabs, increasing the chance of sudden collapses. Most landslides happen between February and March, with around 200 incidents recorded annually.

Walking below the cliffs is still allowed, though park officials strongly discourage it. A full ban would be impossible to enforce, but Director Ingolf Stodian warns that reckless behaviour—like ignoring barriers or climbing loose rock—has led to deaths in the past. In 2011, a 10-year-old girl died when a cliff collapsed at Cape Arkona, the first fatality since the 1930s.

The problem extends beyond Mackinac Island. Erosion has damaged an old East German bunker near Ahrenshoop and a hiking trail on Poel Island. In Schleswig-Holstein, a man fell near Wangels in January 2024, showing how steep cliffs elsewhere pose similar threats.

Authorities continue to monitor the cliffs and update safety measures. Warning signs and barriers now line the most hazardous areas, but visitors must still exercise caution. With winter conditions making the terrain even more unpredictable, staying away from cliff edges remains the safest choice.