Perched on a hill in central Okinawa, Nakagusuku Castle offers sweeping views of both the Pacific Ocean and the East China Sea. Built in the 15th century by the famed Ryukyuan lord Gosamaru, this UNESCO World Heritage site is known for its beautifully curved stone walls and well-preserved structure. Unlike Japan’s mainland castles, Nakagusuku was not primarily a military fortress—it also served as a sacred place for prayer and community gatherings. Within its stone enclosures, you’ll find open spaces for rituals and traces of sacred groves (utaki), reflecting the spiritual foundation of Ryukyuan society. A walk through the castle grounds is both a scenic and cultural journey into Okinawa’s unique past.