Swim with a Whale shark - Even though huge sharks which can range from to plus feet are really harmless to people, since their diet consists of algae, plankton and krill. They don't have the teeth their meat eating cousins have.
Sharks only kill 5 people a year. But humans kill 4 million sharks. They have been an apex predator in our oceans a for millions of years and by us invading their habitat have fatalities occurred (Great White Shark by George Probst)