Ключевые слова: background, beautiful, beauty, blue, cave, caves, clear, cold, cool, drapery, formation, freeze, frost, frosty, frozen, glacier, ice, icefall, icicle, icicles, icy, landscape, light, mountain, mountainous, natural, nature, nobody, outdoor, season, shiny, slippery, smooth, snow, speleothem, streams, translucent, travel, vertical, water, waterfall, white, winter,