That is a STRAIT, and it is Hormuz. If you are actually looking for roads that go from one gulf to the other, there are several, such as Emirates Route 102, and Emirates Route 44 / Omani Route 5 (E-44 and O-5 are the same road, but it crosses the border in several places).
The Strait of Hormuz connect Persian Gulf and Gulf of Oman.
The Gulf of Oman is to the Arabian Sea as the Gulf of Tonkin is to the South China Sea.
The Gulf of Oman is 24,100 sq. miles and the Arabian Gulf is approx. 87,000 sq. miles.
That is the country of Oman.
The Gulf of Oman
Kuwait overlooks Persian Gulf, but not Oman.
Oman and Saudi Arabia towards the Arabian gulf
There are no bodies of water IN Oman. It is surrounded by the Arabian Sea and Persian Gulf.
It is the Persian Gulf and the Gulf of Oman.
The Strait of Hormuz
The Arabian gulf extends from Kuwait to Oman
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