The main waterway of Grand Harbour continues inland almost to Marsa. The southeastern shore of the harbour is formed by a number of inlets and headlands, principally Rinella Creek, Kalkara Creek, Dockyard Creek, and French Creek, which are covered by Kalkara and the Three Cities: Cospicua, Vittoriosa, and Senglea. The harbour has been described as Malta's greatest geographic asset.[3]