System having: a floatable buoy, and a floating hose, the floating hose having a plurality of floatable hose segments, which are coupled to one another in series, the buoy having a liquid inlet connection, which is designed for an underwater hose to be connected, wherein the buoy has a liquid outlet connection, which is connected to a first end of the floating hose, with the result that the floating hose is arranged in a geometrical arrangement with respect to the buoy, wherein a plurality of node units are fastened to the floating hose and preferably to the buoy in such a way that the node units are arranged distributed between the buoy and a second end of the floating hose, wherein each node unit is designed to use an associated radio unit to set up in each case a radio connection (22, 24, 26, 28) to each of at least two of the further radio units of the respective node units (18, 42, 44, 46, 48), thus resulting in a radio network, in particular a mesh radio network, wherein each node unit is designed to determine a relative distance (32, 34, 36, 38) from each further node unit connected by way of a radio connection (22, 24, 26, 28) on the basis of the respective radio connection (22, 24, 26, 28), wherein at least one of the node units forms a main unit, which is designed to collect the determined relative distances (32, 34, 36, 38) from the further node units (42, 44, 46, 48) by way of the radio connections (22, 24, 26, 28) and/or the radio network, wherein the main unit is designed to determine on the basis of the collected relative distances (32, 34, 36, 38) location data which represent the geometrical arrangement of the floating hose relative to the buoy, and wherein the main unit has a radio transmitter unit, which is designed to wirelessly emit a location signal representing the location data. a floatable buoy, and a floating hose, the floating hose having a plurality of floatable hose segments, which are coupled to one another in series, the buoy having a liquid inlet connection, which is designed for an underwater hose to be connected, wherein the buoy has a liquid outlet connection, which is connected to a first end of the floating hose, with the result that the floating hose is arranged in a geometrical arrangement with respect to the buoy, wherein a plurality of node units are fastened to the floating hose and preferably to the buoy in such a way that the node units are arranged distributed between the buoy and a second end of the floating hose, wherein each node unit is designed to use an associated radio unit to set up in each case a radio connection (22, 24, 26, 28) to each of at least two of the further radio units of the respective node units (18, 42, 44, 46, 48), thus resulting in a radio network, in particular a mesh radio network, wherein each node unit is designed to determine a relative distance (32, 34, 36, 38) from each further node unit connected by way of a radio connection (22, 24, 26, 28) on the basis of the respective radio connection (22, 24, 26, 28), wherein at least one of the node units forms a main unit, which is designed to collect the determined relative distances (32, 34, 36, 38) from the further node units (42, 44, 46, 48) by way of the radio connections (22, 24, 26, 28) and/or the radio network, wherein the main unit is designed to determine on the basis of the collected relative distances (32, 34, 36, 38) location data which represent the geometrical arrangement of the floating hose relative to the buoy, and wherein the main unit has a radio transmitter unit, which is designed to wirelessly emit a location signal representing the location data.