A method is specified for determining the instantaneous position of an acoustics section of a towed antenna (11) which is towed by a towing vehicle (10) in the water. In order to determine a sufficiently accurate position without additional hardware complexity and with no need for demanding computation power, the position of the acoustics section is fixed at at least one selected point (14) in the acoustics section, and the position (Pt2) of the selected point (14) is estimated after the towing vehicle (10) has travelled over a defined distance (19), by means of a model from the positions (Ot1, Pt1) assumed by the towing vehicle (10) and the selected point (14) at the start of the distance travelled (19) and the position (Ot2) assumed by the towing vehicle (10) at the end of the distance travelled (19) including the deployed length (L) of the towed antenna and the towing depth of the acoustics section.