- Aguni City is a small city located on Aguni Island in Okinawa Prefecture, Japan. With a population of less than 1,000 people, it is known for its beautiful beaches, clear blue waters, and natural landscapes. The city is a popular destination for tourists who seek a peaceful and tranquil getaway. Aguni City is also renowned for its traditional Okinawan culture and cuisine. Visitors can enjoy activities such as snorkeling, diving, and hiking while exploring the island.