Ключевые слова: background, bouy, buoy, calm, danger, dutch, float, harbor, help, holland, lifebuoy, marina, marine, maritime, mark, marker, nautical, navigation, netherlands, north sea, object, ocean, pool, port, protection, red, rescue, risk, rope, safe, safety, sea, secure, security, sign, summer, symbol, texel, transportation, travel, wadden, warning, water, wave,