Survival is possible, but the odds are statistically low, ranging from 17% to 25% for cruise ship incidents. The primary killers are not sharks, but impact trauma, "cold shock," and drowning. Falling from a high deck (90+ feet) is like hitting concrete, which can knock a person unconscious or cause internal injuries. If you survive the fall, "cold shock" can cause involuntary gasping, leading to water entering the lungs. A supportive peer "survival" tip: if this ever happens, your goal is to stay calm and tread water as efficiently as possible to conserve heat. In 2026, most modern ships have "Man Overboard" (MOB) sensors that alert the bridge immediately, but if no one sees you fall and the sensors fail, the ship's sheer momentum makes it very difficult for the crew to find a single person in the dark, vast ocean once they finally turn around.