Some unsettling video was brought back by a drone that surfs the ocean.

A wave-riding saildrone named Explorer SD 1078 is unmanned.

sunk this week into Hurricane Fiona's eye in the Atlantic Ocean.

It's simple to see how the vessel possesses human qualities like bravery and fearlessness.

Images of gigantic, churning waves that would make even the strongest stomach uneasy were broadcast on SD 1078 on Thursday.

Makers of autonomous marine vehicles Saildrone recently revealed two versions of a video that was captured while the drone was navigating waves as high as 50 feet.

Fiona intensified this week to the point of becoming a Category 4 hurricane.