Floating fluid loading/offloading structure, moored in a body of water, comprising: - a hull extending longitudinally along a longitudinal hull axis (A-A'), the hull comprising a bottom wall, a first lateral wall on a first side of the hull, a second lateral wall on a second side of the hull, opposite the first side, each of the bottom wall, first lateral wall, and second lateral wall, being placed in contact with the body of water; the first lateral wall and second lateral wall are partially in contact with the body of water and define the most exterior surface of the hull on their respective side (38, 42); - a mooring equipment, comprising a first group of mooring lines connected to an anchor on the bottom of the body of water, the mooring lines of the first group protruding laterally beyond the first side, opposite the second side, the mooring equipment comprising a second group of mooring lines protruding laterally beyond the second side, opposite from the first side, and connected to an anchor located away from the second side on the bottom of the body of water; characterized in that the mooring lines of the first group are connected above the surface of the body of water on the first side of the hull, the space facing the second lateral wall being free of mooring lines and therefore totally available for the approach and mooring of a ship to the hull, without the interference with any mooring lines and the ship. - a hull extending longitudinally along a longitudinal hull axis (A-A'), the hull comprising a bottom wall, a first lateral wall on a first side of the hull, a second lateral wall on a second side of the hull, opposite the first side, each of the bottom wall, first lateral wall, and second lateral wall, being placed in contact with the body of water; the first lateral wall and second lateral wall are partially in contact with the body of water and define the most exterior surface of the hull on their respective side (38, 42); - a mooring equipment, comprising a first group of mooring lines connected to an anchor on the bottom of the body of water, the mooring lines of the first group protruding laterally beyond the first side, opposite the second side, the mooring equipment comprising a second group of mooring lines protruding laterally beyond the second side, opposite from the first side, and connected to an anchor located away from the second side on the bottom of the body of water; characterized in that the mooring lines of the first group are connected above the surface of the body of water on the first side of the hull, the space facing the second lateral wall being free of mooring lines and therefore totally available for the approach and mooring of a ship to the hull, without the interference with any mooring lines and the ship. the mooring equipment comprising a second group of mooring lines protruding laterally beyond the second side, opposite from the first side, and connected to an anchor located away from the second side on the bottom of the body of water; characterized in that the mooring lines of the first group are connected above the surface of the body of water on the first side of the hull, the space facing the second lateral wall being free of mooring lines and therefore totally available for the approach and mooring of a ship to the hull, without the interference with any mooring lines and the ship.