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River flowing in the cave in Ninh Binh, Vietnam. Dark underground water, illuminating narrow cave entrance with gentle light reflection, revealing hidden geological wonder
Exploring dark cave with an underground river
A dark tunnel with light coming out of it. Vertical looped animation.
A dimly lit underground tunnel showcasing rugged rock walls, illuminated by faint lights, revealing the secrets of an ancient mine. (POV)
Explore a dark tunnel lined with futuristic neon tube lights glowing in the concrete floor, leading towards a bright light at the end. 4K 3D Animation Loop Futuristic Sci Fi Lines

Free stock videosunderground exploration (8)