GoPro Puts You Inside The Marines' Most Terrifying Water Training Scenario

The helicopter dunk tank scenario is not a favorite of the Marines, but still, it saves lives.

In it, Marines mount up into a modified helicopter hull and strap in. Then the hull dunk into the water and rolls over. The Marines have 30 seconds to clear the vehicle.

The simulation is intended to simulate a belly landing in the water, which would result in a roll over due to the top heavy nature of most helicopters.

They troops undergo extensive training prior to this exercise, and qualified instructors remain onhand.

Still, some Marines can't help but freak out: