What Hive Festival say about their event:

Ferropolis – the “city of iron”  is located between Leipzig and Berlin near the small town of Gräfenhainichen. Lignite has been mined here since 1957. Since the turn of the millennium, not only has Lake Gremmin been created, which provides cooling in the hot festival summer, but also Ferropolis, one of the most unforgettable event locations in Germany.

All info plus tickets linked below…