Scuba diving can be an overwhelmingly beautiful and serene experience, or completely eerie depending on what you are diving into.
One of my eeriest dives was in Aruba where my buddy and I swam through a ship that had been hit by a torpedo (first photo). That same day, we ventured into a plane that crashed and sank to the ocean floor. The plane was still surprisingly in tact which made it even creepier. I swam through the emergency exit door and up into the cockpit, the whole time imagining the poor, terrified souls lost. That day I learned that you can in fact get chills 40 feet underwater, in a wet suit, in 80 degree water.
The second photo is from cave diving in Mexico. Fun, beautiful, and a little frightening at times! When you are swimming down into the depths of a cave in pitch black water, eerie is an understatement.