Ключевые слова: activity, alster, athlete, boat, boating, brine, canoe, canoeing, carboxylic, challenge, competition, couple, course, crew, ducks, effort, eight, endurance, fiber, fitness, germany, green, hamburg, health, hobby, kayak, kayaking, lane, muscles, nature, oar, outdoors, paddle, plants, power, race, river, row, rowing, rowing boat, rowing team, television tower, trees, water, white, wild, wilderness, wildlife, wing,