 thumb|220px|japan's westernmost point monument thumb|220px|reverse side of japan's westernmost point monument  is a town located entirely on yonaguni island in yaeyama district, okinawa prefecture, japan. it is the westernmost municipality in japan, and is known for billfish fishing and as a diving spot. in 1987, divers discovered the yonaguni monument, a rock formation that some believe may be man-made. it is also home to two ryÅ«kyÅ«an writing systems, pictographic "kaida-di" (also used on ishigaki and taketomi islands where it is called "kaida-ji") and the symbols used to indicate family names, "dÄhan" (also used on ishigaki island where they are called "yÄban"). ==geography== *yonaguni is the westernmost part of japan and is a midpoint between the island of ishigaki and taiwan. at cape irizaki (yonagunian language: irinzati) on the western edge of the island, there is a monument inscribed with the words: âthe westernmost point in japan.â *the western third of the island is not part of japanâs air defense identification zone or flight information region; instead, it sits in taiwanâs air defense identification zone and flight information region. (please refer to the article on yonaguni airport for more details.) *the distance between yonaguni an
Towns_in_Okinawa_Prefecture Yonaguni,_Okinawa