32°30′00″N 130°34′00″E / 32.5°N 130.5666667°E / 32.5; 130.5666667 The Kuma River (球磨川, Kuma-gawa) is a river in Kumamoto Prefecture, central Western part of Kyūshū, Japan. It is sometimes referred as Kumagawa River. It is the longest river in Kyushu, with the length of 115 km long and has a drainage area of 1,880 km2 (730 sq mi). The river's estuary was designated part of Japan's 500 Important Wetlands.[1] | ||||||
Length: 115km | ||||||
Basin size: 1880km² | ||||||