"I was diving in Thailand and we were at a site diving where there were two steep hills underwater full of rock formations, coral etc. Between these two areas was a sandy bottom with scattered rocks ranging between the 1-5 meters across, all full of holes and full of life.

We were swimming from one hill to the next and inspecting these rocks along the way. I was swimming along one large one when I get wacked in the side of my stomach very hard. It startled the s@#t out of me and I quickly back off. The dive instructor noticed and came over and we inspected what happened.

That’s when we a gigantic moray eel (I’m later told it was a Giant Moray). He was absolutely massive, never seen one so big. Was easily a couple meters in length and was probably as wide as my head. We assume I had passed too close without noticing and he attacked, he hit my BCD and luckily didn’t persist."

u/gloriouspenguin