Shitooke, Kikai-cho (Kikai-jima island); here are the ruins of Shichi-jo castle, which is believed to be the first castle constructed by the Taira family after their arrival in Amami-Oshima Island.
喜界町志戸桶（喜界島）、奄美諸島に到着した平家が最初に築いたと言われる七城跡がある。