Persian Gulf Bryde's whales, these once common residents can still can be seen in deeper marginal seas such as Gulf of Aden, Israel coasts, and in the Strait of Hormuz. Other species such as the critically endangered Arabian humpback whale, (also historically common in Gulf of Aden and increasingly sighted in the Red Sea since 2006, including in the Gulf of Aqaba), omura's whale, minke whale, and orca also swim into the gulf, while many other large species such as blue whale, sei, and sperm whales were once migrants into the Gulf of Oman and off the coasts in deeper waters, and
Quoin Island (Persian Gulf) to be confused with Quoin Island, Yemen, which is in the Red Sea and also has a lighthouse, or Quoin Island in the Torres Strait of Australia, neither of which are way points. Quoin Island (Persian Gulf) Quoin Island (also known as "As Salamah Island" and "Great Quoin Island") is the largest of three islands of the As Salamah Archipelago. It is the northernmost landmass of Oman and the traditional "way point" used by ships to define the entrance or exit from the Persian Gulf. Once a ship is declaired a position of "Passed Quoin Inbound" the insurance rates for