Abstract: The invention concerns a method for decorating and/or finishing of swimming pools of the type comprising a light rigid structure mainly consisting of one or more lateral metal walls (1) and whereof the base, for example, formed by an apron (2) made of cement mortar or reinforced concrete, and a liner or sealed flexible pocket (3) housed in said structure and pressed against the lateral wall(s) of the latter. The invention is characterised in that the decorative (6) and/or finish (7) elements comprising a skin surface (8) and a magnetised surface or soleplate (9) are pressed, via their magnetic surface or soleplate, against the lateral wall(s) (1-3) of the swimming pool, and said elements are fixed against the metal wall of said structure, by the action of magnetic forces generated by said magnetised soleplate (9) and passing through the liner (3).