Underground tunnel to center of the earth. Journey into depths of cliff. Drilling tunnel in rocky

Alpha Channel: No, Looped Video: Yes, Frame Rate: 30, Resolution: 3840x2160, Video Encoding: H.264, File Size: 301.84mb, Number of Clips: 1, Total Clip(s) Length: 0:10

Underground tunnel to center of the earth. Journey into depths of cliff. Drilling tunnel in rocky mountain. Speleology artificial cave dark tunnel excavation underground. Looping deep hole 3d render.

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