Method and system for coupling an offshore structure to a hoisting block of a hoisting installation

A method for coupling an offshore structure to a hoisting block of a hoisting installation, comprising:

• providing a coupling structure comprising:
• a first coupling part;
• and
• a second coupling part;
• wherein said first coupling part and said second coupling part are connectable to provide a coupling of said offshore structure to said hoisting block for hoisting said offshore structure by means of said hoisting installation;
• connecting said first coupling part to said second coupling part such that said offshore structure is coupled to said hoisting block;
• providing a catching structure for catching at least one of said first coupling part and said second coupling part, said catching structure defining a catch area in which said catching structure is operative;
• providing a positioning structure for positioning said first coupling part and said second coupling part relative to each other in a connecting position wherein said first coupling part and said second coupling part are connectable;
• bringing at least one of the first coupling part and the second coupling part in the catch area;
• catching the coupling part brought into the catch area by means of the catching structure;
• and
• positioning the caught coupling part by means of the positioning structure in the connection position before connecting said first coupling part to said second coupling part.