Diver Finds Structure on Ocean Floor — Then Finds Out Why It’s There

Marking the spot

Eli leaned over the boat’s edge and marked the coordinates on his dive slate and GPS. He double-checked the exact depth reading and water temperature before returning to the helm. He didn’t want to risk losing the spot. With a final glance at the ripple on the surface, he turned the boat around and pushed the throttle hard toward home, where the rest of his gear was.