Shimoshima Island, Amakusa
| Shimoshima (下島, Shimoshima) is the largest island in the Amakusa archipelago. Its coasts are washed by Ariake Sea, Amakusa-nada sea, East China Sea and Yatsushiro Sea. Most of Shimoshima Island is administered as part of Amakusa city, with 67 km2 patch on north-west coast belonging to the town of Reihoku. The island's highest peak is Mount Tenjiku 538.4 m (1,766 ft). | ||||||
| Location： Ariake Sea, East China Sea | ||||||
| Archipelago： Amakusa | ||||||
| Length： 44 km (27.3 mi) | ||||||
| Width： 21 km (13 mi) | ||||||
| Coastline： 301.2 km (187.16 mi) |