You probably saw them on TV or at the beach and maybe you might have used them before when you went snorkeling. The fins allow you to move through the water almost effortlessly and with great efficiency instead of swimming with just using your bare feet and hands. The fins are strapped into your feet because of your powerful leg muscles that you can use for swimming and it provides far more effective propulsion than your arms can provide. You will see there the breathtaking magnificence of the coral reefs and the sea creatures. This paves way for the obsession of most of the people on said sports. It also encourages a lot of tourists to enjoy a thrilling and fun experience under the water. There are many tourist destinations like the scuba resorts that are well known to people. Like any other kinds of sports the divers spend a lot of money just to make them equipped with the needed gear. You can never dare reach underwater world without the scuba diving equipment. The equipment comes in various sizes, colors, styles and brands. Aside from its functional aspect, the manufactures also ensure that the divers will be comfortable enough in using said equipment. 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. Mostly, professional divers use standard air that is composed of 21% Oxygen and 79% Nitrogen for the open circuit sets. Another feature you should look for is that it should have a comfortable skirt with a close fit to your face and provides a good seal. A mask should also have an adjustable strap that can be locked in place. You should always remember that scuba diving is a relaxing and fun activity, choosing the wrong scuba mask will make it uncomfortable and annoying. Most of the people are getting interested to join scuba diving vacation. They believe that it is a real adventure. This is where you can relax and enjoy a bond with the creatures underworld. Scuba diving vacation is not only limited for a certain place but it is prevalent in the different parts of the world.