Ключевые слова: angle, assistance, autumn, beach, beacon, boat, bridge, buoy, calm, complex, control, danger, day, energy, float, flow, landscape, marine, marker, nature, nautical, navigation, no people, norrland, outdoor, pier, pointer, red, red buoy, reflection, refraction, safety, sea, security, ship, shore, sign, signal, speed, structure, sun, sunny, support, surface, sweden, swirls, tilt, umea, warning, water,