A breathtaking underground tropical grotto illuminated by bioluminescent fungi and cascading waterfalls, massive natural limestone cavern with crystal clear emerald pools, ancient stone steps carved into living rock leading to hidden platforms surrounded by massive philodendrons and aerial orchids, dozens of resplendent quetzals and emerald toucans perched on moss-covered stalactites, soft ethereal blue-green light filtering through crevices creating volumetric mist and prismatic rainbows on wet stone surfaces, rendered with Unreal Engine 5 raytracing and PBR materials, reimagined as hand-painted Studio Ghibli animation with visible brushstrokes, cool aqua and phosphor green gouache color palette, cinematic downward composition with strong geological perspective and mystical atmospheric depth