Ключевые слова: ancient, background, beauty, cave, cluse, concept, dark, desert, discovery, end, environment, hike, hiking, hope, landscape, light, madeira, mountain, mysterious, narrow, natural, nature, nobody, outdoors, portugal, ray, reflection, rock, rocky, sandstone, scenic, stalactite, stone, sun, sunbeam, sunlight, tourism, tranquillity, travel, tropical, tunnel, view, wall,