- Remember that tropical reef biodiversity is similar to a tropical jungle. The only difference though is that when you are exploring the world underwater, your gear is rendered weightless. Scuba diving underwater trips is exciting and you can select from different possible trips underwater - Decide what you wanted to explore or view underwater. The instructor will also teach you about hand signals that are used for communication underwater. He or she will also teach you about the dos and don ts about scuba diving and also about the emergency procedure in case you or your diving buddy encounters a diving accident. Scuba diving instruction allows you to have a safe and enjoyable dive. For example, if you are certified as an open water diver, you are only allowed to dive in dive sites that have a minimum requirement of open water diver. However, if you are certified as an advanced open water diver, you can dive at dive sites that have a minimum certification level of open water and advanced open water. With the competition between dive shops, the price for a dive course is down to about between $125 to $150 in any open water course or advanced open water course. Recently, Utila became the home of whale sharks which is the world s largest fish. Don t you worry whale sharks are harmless as you can swim alongside the fish. You should get your wetsuits and drysuits that can provide the needed thermal insulation and can avoid complications like hypothermia. Always remember that the water is conducting heat 25 times faster than the air from your body. Scuba Sets: There are two kinds of scuba sets and these are open-circuit and closed circuit. The world is indeed in chaos not only because of war and misunderstanding between races but because of the environmental destructions. Scuba diving in Hawaii is an important activity for the people. Diving becomes famous in the place not because of its being a favorite leisure activity for the divers but because people there want to take part in the preservation of aquatic resources.