Ключевые слова: acid lake, active, active volcano, alpine, background, blue, blue sky, cliff, clouds, crater, crater lake, edge, geological, geology, gorely, hiking, kamchatka, lake, layer, mount, mountain, mountain range, mountaineering, peak, picturesque, range, rock, rocky, scatter, sky, slope, soil, steep, steep slope, steep slopes, stone, stratovolcano, structure, texture, top, top of mountain, tourism, trekking, turquoise, volcanic, volcanic crater, volcanic lake, volcano, volcanology, without vegetation,