Please welcome Eyoyo Underwater Fishing Cameras.https://amzn.to/3siEgXn
yep once this year so far running to a flag ran right into a spring that was covered with a thin layer of ice and snow....never touched bottom...didnt give myself a chance to find out where the bottom was either....best part was i climbed out and kept running for the flag lol
only put my leg down a hole ice fishing. but i have dropped through a few times while trapping.