Gushikawa gusuku was a fortress located on a promontory on the northwest coast of the island of [[Kumejima]], the westernmost point in the islands immediately surrounding [[Okinawa Island|Okinawa]], about 100 km west of [[Naha]], and facing the East China Sea. | Gushikawa gusuku was a fortress located on a promontory on the northwest coast of the island of [[Kumejima]], the westernmost point in the islands immediately surrounding [[Okinawa Island|Okinawa]], about 100 km west of [[Naha]], and facing the East China Sea. |