Are you tired of the typical vacation activity of swimming with dolphins? If you are in need of a new adventure then you should definitely try swimming with sharks in their natural habitat!  If you would like to swim with the second most dangerous shark to humans, then you should definitely check out Papua New Guinea, where it is nearly impossible to not have an encounter with a shark, and is known for being a home to the tiger shark. If you would like to take the safer route, and swim with only the seventh most dangerous shark to humans, then there are many places for you. Anywhere from the Cocos Island in Costa Rica, to the Galapagos Islands in Ecuador, is home to the hammerhead shark.