At Hidrosfera Sub XXI, we manage all types of underwater dredging using state-of-the-art equipment. Whether through diver-operated suction dredging (venturi or pump), or using a suction dredger on a pontoon, we are equipped to handle dredging projects of any scale and complexity. We also offer complementary bathymetry services to provide detailed information on the seabed conditions before and after dredging.