Aitutaki is not a city, but rather an island and one of the 15 islands that make up the Cook Islands in the South Pacific. The largest settlement on the island is called Arutanga. It is a small village located on the western coast of Aitutaki and is the main administrative center of the island. The village has a small population and features a few shops, restaurants, and government offices. The island is known for its stunning beaches, crystal-clear lagoon, and is a popular tourist destination for its natural beauty and cultural heritage.