PADI: Professional Association of Diving Instructors. PADI is the world's largest and most recognized diver training organization. It was founded in the United States in 1966 and has 54 years of teaching experience. There are more than 137,000 PADI professional diving instructors and 6,700 diving centers and resorts around the world, and more than 29 million PADI diver certificates around the world. PADI allows you to experience the fun of diving wherever you are. Diving allows you to get rid of the crowd and see the whole earth; from Antarctica to the Arctic, from the ocean to fresh water, thousands of diving sites, every moment is different, this is the true masterpiece of nature; become a PADI diver, PADI provides members with comprehensive educational materials, multiple diving level training, Scuba diving courses, mermaid courses, free diving and other diversified courses. You will receive the best diving training courses in the world and are committed to becoming a member of the Marine Conservation Alliance. Contribute your own strength to marine protection.