Ключевые слова: aerial, aerial photography, bird watching platform, blue, blue sky and white clouds, city, country park, daytime, ecology, environment, environmental protection, grassland, green, green city, lake, lake area, lake view, lake water, lakeside, landscape, nature, outdoor, park, pond, protected area, reflection, relaxation, river, river bank, scenery, serenity, silence, sky, small island, sunlight, swamp, terrain, tianjin, tourism, tranquility, travel, urban greening, urban wetland, view, water, water waves, wetland, wetland park, willow, yueyang,