An open water dive instructor s responsibility is to teach people who want to learn how to dive and certify them as an open water diver. They can also certify people who want to continue education from advanced open water diver certification to dive master certification. The instructor will now send a form to the diving agency, such as PADI and NAUI, which certifies that the diver passed all the requirements as a diver on a particular level. 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. Right now scuba diving is more than just a recreation. Most of the people are getting interested to join scuba diving vacation. Scuba tanks are attached at the back of scuba divers and are filled with compressed air and never oxygen. Most people who never took scuba lessons commonly think that scuba tanks are filled with oxygen. This is a common misconception and you should know that scuba tanks are never filled with pure oxygen. If you re just a beginner, you should have the basic equipment that include fins, snorkel, mask, and weight belt before moving to professional equipment. Basic Equipment: First, you should have the diving mask so you can see underwater. Your diving mask must be constructed in a way that you can still breathe from the mask. It has a vast diversity of marine life that people will surely enjoy watching. Costa Rica dive resorts also offer first-class dive boats that you, as a diver, will be comfortable while traveling to the dive site. Costa Rica is relatively new in the diving community and there are lots of potential dive sites that you can explore. It has also safety coverings that will protect your eyes from unnecessary components. 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.