An arrangement for anchoring a floating structure comprising a mooring boom 120a, b; 650a, b pivotally arranged at either end, wherein each mooring boom at its free end has a bushing 124a, b: 654a, b through which anchor chains or wires can run. The anchor chain that runs through one of the bushings is fastened to the opposite end of the structure. In addition, for reasons of stability there may be tensioned lines which connect the free ends of both mooring booms to the structure.