Deep in the heart of Austria ... this lake is an idyllic retreat for nature lovers and hikers. The circular trail around Lünersee provides breathtaking scenery, flourishing alpine flora ...

Austria and Germany are among some of them. But many people might be unaware that those three countries also share a stunning lake that's known for its crystal clear waters and beautiful scenery.

Deep in the heart of Austria ... this lake is an idyllic retreat for nature lovers and hikers. The circular trail around Lünersee provides breathtaking scenery, flourishing alpine flora ...