Miyara River (Japanese:宮良川) is the biggest natural fresh water river of Ishigaki Island located in Okinawa Prefecture of Japan.[1][2] The river is popular for the mangroves forest on both its banks which houses various wild birds and butterflies.[3] 24°21′19″N 124°12′51″E / 24.3553°N 124.2141°E / 24.3553; 124.2141 | ||||||