The present inventions relates to the field of human activities involving staying in water, in particular, in immobile or immobilized states. The claimed technical result reduces to ensuring highly stable staying at the surface of deep water, in particular, under conditions of considerable water surface roughness. According to the proposed invention, the face is turned up, the head is straightened, the legs are flexed, the arms are drawn aside and turned outside, and the forearms are flexed. Alternatively, the arms are straightened and the thighs are flexed or the arms are flexed and the thighs are straightened. Some distinctive features are related to additional technical means, which facilitate realization of the present invention.