Human: Please generate a brief description of a chilling cave in the wilderness with blocks of ice and an air vent. Assistant: 
Located near the waterfall, the small cavern chamber is opened to the sky through a large fissure. Acting as an air vent, it allows the chill of the arctic winds to howl downward creating a dull, resonant din throughout the room. Stacked neatly against the walls are blocks of ice that have been chipped from the frozen lagoon beyond.