Ключевые слова: authority, autumn, boat, bridge, building, canal, cargo, central, crosscut, ecology, engineering, entrance, gate, gates, historic, hydraulic, industrial, industry, lake, landmark, level, lock, locks, narrow, natural, nature, ocean, poland, river, scenery, sea, security, ship, shipping, sluice, technology, trade, traffic, transit, transport, transportation, travel, vacation, vessel, vistula, water, watercraft, waterway,