Underground river bursting - GIF
A natural underground river bursts in Italy after heavy rains.
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Previously:
https://www.homemadetools.net/forum/...073#post149447
https://www.homemadetools.net/forum/...844#post137168
https://www.homemadetools.net/forum/...159#post134555
https://www.homemadetools.net/forum/...083#post125701
