How many people have died from going under water in a tank to see sharks?

The exact number of people who have died while diving or going underwater in tanks to see sharks is not well documented, as incidents can vary widely and may not always be reported. However, fatalities in such controlled environments are extremely rare due to safety measures in place. Most shark encounters in aquariums or similar setups are safe, and fatalities usually occur due to mishaps or health-related issues rather than direct shark attacks.