A type of natural phenomenon known as a rhythmic spring, there are only 3 such features in the world, and the Periodic Spring is thought to be the largest. The spring was discovered by a logger who happened upon the strange stream in the course of his work, and has been a natural attraction ever since. The water at the site is said to flow for 18 minutes straight, before stopping for another 18 minutes.
Rivers
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By: kkeps
