Ключевые слова: adventure, aira, aire, background, backlight, beauty, blue, cave, cavern, cliff, coin, color, colorful, dark, europe, geological, geology, grotto, grutas, grutasdemiradeaire, illumination, landmark, landscape, light, limestone, mira, miradeaire, moeda, mountain, natural, nature, outdoor, park, portugal, portugese, rock, speleology, stalactite, stalagmite, stone, texture, tourism, travel, tunnel, underground, view, water, yellow,