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Danube ultra‑swim world‑record attempt underway

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Latest: Marinus Obermair launches 350‑km Danube swim from Passau to Bratislava

In late July 2026, 23‑year‑old German extreme athlete Marinus Obermair announced a plan to swim 350 km down the Danube from Passau, Germany, to Bratislava, Slovakia, within 72 hours and set a new world record. The effort

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