Persian Gulf at its narrowest, in the Strait of Hormuz. The waters are overall very shallow, with a maximum depth of and an average depth of . Countries with a coastline on the Persian Gulf are (clockwise, from the north): Iran; Oman's Musandam exclave; the United Arab Emirates; Saudi Arabia Qatar, on a peninsula off the Saudi coast; Bahrain, on an island; Kuwait; and Iraq in the northwest. Various small islands also lie within the Persian Gulf, some of which are the subject of territorial disputes between the states of the region. The International Hydrographic Organization defines the Persian Gulf's southern limit
Persian Gulf (horse) winners included the British Classic Race winners Parthia and Zabara, the leading stayer Zarathustra and the Champion Hurdler Persian War. Other good horses sired by Persian Gulf included Abadan (Cork and Orrery Stakes, Diadem Stakes), Agreement (Doncaster Cup), Arabian Night (second in the 1954 Epsom Derby), Persian Road (Ebor Handicap, sire of Dark Mirage), Queen of Sheba (Irish 1000 Guineas, Royal Hunt Cup), Rustam (Champagne Stakes) and Tamerlane (St James's Palace Stakes). He died in 1964 at the age of 24. Persian Gulf (horse) Persian Gulf (1940–1964) was a British Thoroughbred racehorse and sire, who raced during World War II.