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. The agency in turn will send a Certification Card or C-Card to the diver who just passed all the standard requirements imposed by the agency. 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. First, some of them want to fulfill their skills in photography by trying to capture the majestic species in the aquatic environment. Second, they simply like to experience the nerve-breaking feeling in the underwater. However, things are not easy because you still need to plan it thoroughly. There are plenty of things that you have to do. That is why Hawaii became a great and popular place for scuba diving with some of the best dive sites in the world. The islands of Hawaii have their own characteristics and personalities providing unique and exciting diving sites. You can get exciting pictures underwater while diving. - Hawaii Island has diving sites located off the leeward coast which is sheltered from the trade winds by the large glassy mountains with around more than 100ft visibility. By trying to ponder on said questions, more or less you will gauge your capacity if you are really ready for scuba diving in Hawaii. You have to bear in mind that financial aspect plays a vital role in this activity. Aside from becoming financially stable you should also be ready with all the necessary equipment that you need to bring. 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. What if you don t know how to clear a mask filled with water without surfacing? It may cause discomfort and sometimes panic if you don t know how to do this.