cinematic, moody, perfection, Deep within the heart of a mountain, the underground lake lies hidden, accessible only through winding tunnels and shadowy caverns. Its waters are a warm and blue, golden, reflecting the faint glow of glowing crystal formations, creating a surreal and ancient atmosphere. Large city built into the wall of the mountain on the far side of the lake. The air is damp and carries the faint echo of dripping water, adding to the sense of mystery and seclusion. This subterranean oasis feels like a secret world, untouched and forgotten by time