Homemade Mini Sub ROV In Flooded Natural Cave

After testing the DIY remote submarine in another cave, I decided to take it over to Wakan Tipi (aka Carver's Cave) in St. Paul MN. This cave is a historic cultural site significant to the local Dakota tribe. It's been sealed up and flooded for many years, so the only way to see much of it is with something like this!

I had an issue with my navcam display, so was piloting the ROV essentially blind. I was still able to get some interesting footage of the cave floor, local wildlife (a frog), and possibly a carving on the wall. Is it a petroglyph from hundreds of years ago? Check out the footage and see what you think.

The ROV is a little banged up after this trip and may need some repairs, but I'll try to get it out to some more locations in the future.

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