Pond Boss Forums INTRO Questions & Observations Pond gone.

That's crazy cool, and annoying at the same time!

The temptation would be to get an even longer endoscope and see if it connects to something even larger. The interesting part is the walls of that thing look like they have seen a lot of water flow and deposits over the years. It may have been part of a spring or small cave system once, where now water flows down at a deeper level or was cut off by construction.

If it is downward enough you could get an old GoPro ad drop it down on some masonry string as far as it will go while recording.