Various species of sharks are seen in this area, including bull sharks. This diving is only reserved for experienced divers with higher certification levels. Costa Rica is also known for its great underwater visibility. If you plan on going scuba diving in Costa Rica, the best time to go diving is on the dry seasons from February to April. This is because scuba diving resorts all over the world will never allow a person to go diving without certification. You may ask why. 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. For the diving enthusiasts, anything that concerns about scuba diving is interesting. The use of a wetsuit for instance is an important part of the game. It is equated to the significance of using a tank in scuba diving. Without your wet suit, scuba diving is not possible. It is especially designed for the people who are diving underwater. Aside from that, teaching you with the proper skills, diving courses that are being offered in scuba diving schools will help you learn how to select, care and use your scuba equipment. Safe diving and breathing techniques are also taught for the trainees in scuba diving. Here are some of the leading scuba diving schools that are offering courses for people who are interested to engage in scuba diving: Scuba Diving School in Malta Self Contained Underwater Breathing Apparatus or SCUBA has also its basics. Helium is used because it is less narcotic than nitrogen and you can dive deeper without worrying about oxygen toxicity. This is because you lessen the oxygen and nitrogen content in the mix and are replaced by helium. However, if you want to dive deep than conventional diving, this requires special training and also a lot of discipline before you can do this. Scuba diving in Thailand considers both the beginners and the expert divers. In fact, they have several special programs that can be enjoyed by any of the vacationers. They are acquainted with the nature of scuba diving in Thailand first before getting into it. Here are some of the features in some of the scuba diving resorts in Thailand: It has volley of beaches that attracts the divers throughout the year.