Caught in an Underwater Avalanche | Expedition Raw

We're heading down to explore an underwater cave. We always run a guideline, and you place it very carefully because you have to assume that you're going to come out in no visibility. Without that line, you have low odds of getting out.

Then all of a sudden, it just started raining down on top of me. One of us, or all of us, just the fin kicks or just the pressure waves of our body must have set off this avalanche. My initial reaction was to just scream in my own head. We've trained ourselves to take slow, deep breaths and keep our heart rate down.

The last thing I look for is where my dive partner is and where the line would be. I found the line and then Brian's leg, and I gave him the push forward signal. Lucky that it was a very narrow passageway, because in a giant passageway, I wouldn't have hit the line.

After spending a long time completely concentrated with no visibility, it's only when you get to the surface and see all your dive buddies next to you that you realize just how intense an experience you just went through. That was one of the most intense 78 minutes that I've spent in a long time.