biwa falls near iya no kazura bridge in nishioyayama village, miyoshi city, tokushima prefecture, japan

area biwa bridge canyon city cliff falls forest green iya iyakei iyaya japan kazura kenzan landscape miyoshi mountain nature nihon obokei prefecture quasion region river rock sankibashi scenery shikoku splash stone stream takitsubo tokushima tourism travel tree unexplored valley water waterfall