The present invention relates to a device (1) for cleaning marine growth from a marine hydro structure and avoiding the marine growth from further flourishing. The device comprises deformable multi-component floating ring (2) and diving ring (3), which are arranged around the supporting components of the marine hydro structure, and the sea powers of the flowing of waves, swells, tides and water flow are utilized for driving. With the help of the reciprocal movement of the device surrounding around the supporting structure, the marine growth on the supporting structure components are removed and the further flourishing is avoided. |