A goal in water polo is scored when the ball passes completely across the goal line, under the crossbar and between the goal posts. A goal may be scored through contact with any part of the attacker's body except a clenched fist.[9] The goal structure in water polo is dependent upon the depth of the water. The goal mouth measures 3 metres across and is either 0.9 metres above the surface of the water or 2.4 metres above the floor of the pool, whichever is higher.