Ключевые слова: architecture, biology, bird, bird watching, bird watching tower, birds, birdwatching, boardwalk, bridge, cabin, cloudscape, construction, country, countryside, ecology, environment, environmental conservation, fishing, footpath, lake, landscape, lookout, nature, nature reserve, netherlands, observation, panoramic, park, pedestrian, pier, recreation, river, road, rural, shallow, surface, tourism, tower, tranquil, travel, vacation, viewing, walk, walkway, watch, wilderness, wildlife, wood, wooden,