Glacier in a Subterranean Dungeon - 3D Render

Ultra-detailed 3D render of a colossal glacier frozen inside a subterranean dungeon. Translucent blue ice blocks with crystalline facets fill a vast damp stone chamber; ice stalactites hang from the ceiling and stalagmites rise from the floor. Rough, moss-free granite walls loom around rusted iron bars and broken gates, all partially encased in ice. Warm torchlight from wall sconces casts amber reflections and caustics on wet stone, contrasting with the glacier's cold blue glow. Volumetric fog swirls in the air, a shallow icy pool mirrors the icy landscape, with subtle subsurface scattering in the ice and realistic shadows for depth. Cinematic, photorealistic, ray-traced lighting, ultra-high detail, sense of awe and scale.