- Rebun City is a town located on Rebun Island in Hokkaido, Japan. It is the only city on the island and has a population of around 2,700 people. Rebun Island is known for its beautiful natural landscapes, including picturesque coastlines, cliffs, and wildflower fields. The city itself is mostly residential, with a few shops, restaurants, and accommodations for tourists. Many visitors come to Rebun City to explore the island's hiking trails and enjoy the peaceful atmosphere of this remote destination.