Follow through shot of the tunnels going to the chambers of Prohodna Cave, passing by limestone wall

Frame Rate: 29.97, Resolution: 3840x2160, Video Encoding: H.264, File Size: 59.99MB, Number of Clips: 1, Total Clip(s) Length: 00:05

Follow through shot of the tunnels going to the chambers of Prohodna Cave, passing by limestone walls and stalagmites where holes known as God’s Eyes can be seen in Karlukovo, in Bulgaria.

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