5 Most Mysterious Underwater Sounds Ever Recorded

⁣The Ocean is a pretty scary place and over the years many mysterious sounds have been recorded from deep down that to this day have no solid explanation. Here are five of those that are not only creepy and eerie but could also be a glimpse of the incredible undiscovered creatures of the deep sea.

The Bloop, Upsweep, the Train, Julia and Slow down natural event or undiscovered sea monsters?