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Thread: what are they? exit of underground river?

  1. #1
    Junior Member
    Join Date
    Jul 2006
    Posts
    5

    Default what are they? exit of underground river?

    Hi I am astill live! after maybe more than 10 years I am able to log in back using my old account and (default) password of course!

    I am back because I am curious about these. found underwater around surrounding reef of an island. imo they are exits of underground rivers. I found a few more, the one that I tagged was one of the biggest/largest.

    Am I right?

    thanks,
    Jim.
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