Not only is it a grand story to tell but it is also a safe ride to experience. The submarine submerges itself in water and takes you through the ripples to see snappers, turtles, eels, lionfish, manta rays and whales. There are sufficient oxygen and food supplies for all the passengers to last up to four days in case of an emergency. If you are in two minds as you read this, throw your fears out of the window and get on board. Once you experience the air-conditioned comfort and the meticulous interior, you will be prepared to take the plunge. If you are lucky and the seas are not rough, exploring a shipwreck or two also might be on the cards.