Ключевые слова: active, adventure, alpine, ancient, backpack, beautiful, beauty, cave, cavern, climb, danger, entrance, environment, expedition, explore, explorer, extreme, geologic, geological, geology, grotto, hiker, holiday, huge, inside, leisure, male, man, mountain, mountaineering, natural, nature, people, rock, rocky, sport, stone, tourism, trail, travel, trekking, underground, vacation, wall, wild,