Vision underwater is possible by using a scuba mask because it creates an air space between your eyes and the water. However, you might mistake a scuba mask to goggles that you would commonly see being used by Olympic swimmers. Although goggles also let you see underwater, it does not entirely mean that you can use it for scuba diving. This is distinct from a goggle. Snorkel This is your breathing equipment. It allows you to stay in the water even without lifting your head from it. This is often used by the divers in order to conserve the air found in the tanks. Fins Like fish, it will allow you to swim under the sea with lesser effort to take. This is a common misconception and you should know that scuba tanks are never filled with pure oxygen. This is because, ironically, this gas that gives people life is lethal when breathed under pressure. This can cause oxygen toxicity and can cause instant death. Scuba tanks are often filled with air, similar to what we breathe on the surface, that are compressed to about 250 bar or 3000 pounds per square inch. Hawaii has a consistent weather condition with few degrees temperature change throughout the year due to year-round warm ocean surface temperature keeping the overlying temperature warm. The warm waters surrounding Hawaii are haven to incredible number of fish, mammal and coral species. There is an approximate thirty percent of common reef fish found in Hawaii due to the archipelago s isolation. The reason for this is because they need to be sure that you know all the things involved in scuba diving and that you are capable of handling problematic situation in case it arises underwater. Scuba diving may seem simple. However, it is far more complicated than just breathing underwater. You need to know everything involved in the underwater world and all about the scuba diving equipments to make your dive safe and more enjoyable. How much more if you will spend your vacation underwater? You just can t imagine the enchanting beauty of the coral reefs and the aquatic creatures gliding in the sea. If you will just have the chance to take a glimpse of a real paradise, surely you will immediately grab it. One of the perfect activities today where you can spend your time with nature underwater is through scuba diving.