GoPro underwater fishing mount
thingiverse
This thing allows you to mount a GoPro or other compatible waterproof camera, attach a cord, attach some bait, and see what is underwater. Screw on some M10 bolts to make it sink. It happily sits on the ocean floor waiting for fish to nibble at the bait, or attach some hooks to the holes provided to actually catch the fish you are filming.
Download Model from thingiverse
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