The Caspian Sea, Khazar Sea or the Mazandaran Sea, is a watershed from the south to Iran, from the north to Russia, from the west to Russia and Azerbaijan, and from the east to the republics of Turkmenistan and Kazakhstan.
The Persian Gulf of 240,000 square kilometers, after the Gulf of Mexico and Hudson, is the third largest bay in the world, located in southern Iran. Neighbors from the Gulf can be found in the west of Kuwait and Iraq, and south of Saudi Arabia, Bahrain and the United Arab Emirates.
The Oman Sea is said to be in the geography of today the Blue Plain connecting the Persian Gulf through the eastern Strait of Hormuz to the Arabian Sea or the Makran Sea.
Best and Top Beaches, Islands of Iran in Persian Gulf, Caspian sea and Oman Sea as Tourist Attractions like Darak Beach, Red-Silver Beach, Statues Valley Coast and etc.