Flag of the Cayman Islands Olympics, and during the 2010 and 2014 Winter Olympics, the Cayman Islands team marched in under the flag as described on the government website. Common with most British overseas territories, the Governor's flag is a Union Flag defaced with the coat-of-arms. The governor's flag was also changed in 1999, the arms were made bigger and a golden ring was added. Flag of the Cayman Islands The flag of the Cayman Islands was adopted on 14 May 1958 after the colony was officially granted a coat-of-arms. Prior to that, the Islands had used the British flag for all official occasions. In
Flag of the British Indian Ocean Territory that the flag, which was granted by Queen Elizabeth II on the 25th anniversary of the BIOT in 1990, is that of the Commissioner and has only semi-official status. Given that it is impossible for civilians to visit the British Indian Ocean Territory, it is not clear how widely this flag is used. However, a video was released by the Naval Support Facility on Diego Garcia. It shows a scene where the flag is being flown. The only settlements on the Islands are the Anglo-American naval and air facilities. The flag does indeed fly at Diego Garcia, along with the