weir (or low head dam) on the river with gate

weir water tree swirl swirling stream steken sport south river republic raft passage otava murky low head green gray gate float dayspring dam czech cloudy canoe brown bohemia antiflood nature outdoor landscape spring natural environment old wet vintage stone structure waterfall flowing tranquil countryside scenery scenic europe landmark waterway turbulent gate used wood bundled rafts today sports rafts canoes small town