Overview
- Hamburg’s environment authority says ice on the Alster and other waters remains brittle and uneven, with at least 20 centimeters of continuous thickness required for a public opening that is not expected this winter.
- Cities across Lower Saxony and Bremen caution that natural ice is not load‑bearing, with Hanover’s Maschsee only opened at a verified 13‑centimeter sheet signaled by city flags and Braunschweig using blue flags for limited areas when safe.
- Test borings on the Steinhuder Meer found roughly 6 to 11 centimeters in parts of the eastern bays, yet large sections remain open due to wind, and experienced users urge carrying ice awls (Hansa‑Dubben) and a floating line.
- Rescue services advise staying off natural ice, moving close to shore if one insists, calling 112 in emergencies, keeping low to spread weight, and attempting rescues from land with lines, poles, or rings rather than stepping onto weak ice.
- Police report recent accidents, including a hospitalized 12‑year‑old in Celle, warn spectators near Elbe ice piles at Geesthacht about sudden water level rises, and note access restrictions as icebreakers work the river.