For a solitary experience diving on vacation or in another situation, you should not be certified, but you need an education first. You must learn the basics of how the equipment works and is easy to carry in water and in most cases, these options are checked and monitored for safety.
If you are interested in diving in the long run, you will probably want to one more class certification. This usually takes several weeks and includes homework, written assignments and examinations, but also some time in the pool to become familiar with diving equipment. When you have completed this part of the course, you're ready for some open water certification training. If you are in a warm climate it is easy to do, to live, but otherwise you may need a warmer climate, you go to complete your diving certification.
There are a lot of equipment involved with diving. You need a wetsuit, flippers and face mask in addition to the oxygen cylinder, the controller (which you breathe through) and a BCD. Dive tables or dive computer lets you know how far you can go and how fast you can move up and down to avoid getting sick. You can also invest in a first aid kit, a dive and float a dive flag and a repair kit oxygen tank. Some people like to wear a collection bag and a knife and a coat. You can see some of the diving equipment or can be used in an online discounter, to save you the cost of investment. Or you can also be rented if you do not know if this hobby is for you.
Take an underwater journey and you may never see the world the same way.
