Scuba diving certification is an absolute necessity for anyone wanting to learn to scuba dive. You'll be depending on your life with the scuba equipment, so it is vitally important that you are professionally instructed on how to use it safely and properly. Most scuba diving certification can be obtained in any major city. Such facilities provide both out of water and underwater instruction in a swimming pool. A swimming pool is not the ocean, however, so be careful where you dive next.