Ключевые слова: adventure, alone, ancient, backpack, beam, cave, cavern, caving, dark, darkness, deep, earth, exploration, extreme, female, geologic, ground, hole, inside, lady, lamp, light, mountain, mystery, natural, nature, night, old, one, people, person, pond, ray, research, rock, rustic, shadow, spelunker, stalactite, stalagmite, stone, torch, travel, underground, walking, wall, water, woman,