| 1．Miyara River |
| 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 |
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| 2．Kokuba River |
| The Kokuba River (国場川, Kokuba-gawa, Okinawan: Kukuba-gāra) is a river in Naha, Okinawa, and is the hydrographic resource for domestic urban fresh water. A number of geographical places on Okinawa bear its name, such as Lake Man Park (漫湖公園) and Kokuba Danchi (国場団地). The river flows into the East China Sea. |
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| 3．Urauchi River |
| The Urauchi River (浦内川, Urauchi-gawa) flows through the central portion of the island of Iriomote in the Yaeyama District in Okinawa Prefecture, Japan. It is the longest river in Okinawa.[1] |
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| 4．Nakama River |
| The Nakama River (仲間川, Nakama-gawa) is a river located on the southeast side of the island of Iriomote, one of the Yaeyama Islands of Japan. |
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