Whether you're an avid diver or are trying snorkeling for the first time, the Cayman Islands have some of the most amazing sites to see under the water. From turtles to ship wrecks to sharks to vibrantly-coloured coral reefs, you could spend hours with your head in the water and still not see it all! And if you don't want to venture too far from land, there are amazing reefs just off many beaches.