The Straits of Tiran (Arabic: مضيق تيران Maḍīq Tīrān) are the narrow sea passages between the Sinai and Arabian peninsulas which separate the Gulf of Aqaba from the Red Sea proper. The distance between the two peninsulas is about 13 km (7 nautical miles). The body is named after Tiran Island, located at its entrance 5 or 6 km (3 or 4 mi) from the Sinai. The Multinational Force and Observers monitors the compliance of Egypt in maintaining freedom of navigation of the straits, as provided under the Egypt–Israel peace treaty.Sanafir Island lies to the east of Tiran, southeast of the shallow strait between Tiran and Saudi Arabia.