The Danube is one of the priority areas for WWF’s global freshwater program, with key contributions in freshwater habitat conservation, water stewardship and water security. It is the most international river in the world, flowing through 10 countries and 4 national capitals on its 2,800 km stretch from the Black Forest to the Black Sea.Providing suitable alluvial habitats on Liberty Island and its side-arm. Restoring the alluvial forests of the and along its side-arm, Revitalising the side arm by providing longitudinal connectivity and restoring its natural riverbed, Social advantage: area for recreation and natural filter for drinking water is improved While large sections of the upper Danube have been regulated, the lesser-intervened areas of the middle and lower Danube feature a rich and unique biological diversity that has been lost in most other uropean river systems. All the projects that improve ecological status of Danube and its floodplains contributes to the EUDRS priority areas 4, 5 and 6. Achievements: The side-arm is a flowing section with at least 180 cm water each day of the year. The side-arm is at least 50 m wide, it is getting more natural shape.5 ha young semi-natural alluvial forest is planted, it is growing well, canopy cover is already 90%.47 ha (the entire island) is free from invasive trees in 5 years.Rheophil fish species appeared in the side-arm (e.g. Eudontomyzon mariae).The flowing side-arm serves as a natural filtration for drinking water wells.