PADI (Professional Association of Diving Instructors) is the world's largest recreational diving membership organization. The membership includes dive businesses, resort facilities, academic institutions, instructor trainers, dive educators, divers, snorkelers and other watersports enthusiasts.

Students learn the basics through independent study and then are guided through additional development by their instructors. The goal is to get students in the water as soon as possible and provide them with the instruction necessary to gain confidence in their diving abilities.

All PADI programs, entry-level through instructor training, fall under strict educational standards to maintain worldwide consistency and quality. PADI takes a proactive approach to, with a full-time department that randomly surveys PADI Divers to monitor PADI programs and to confirm that PADI courses meet PADI's high standards. This commitment to a strong quality assurance process helps maintain credibility and continually improve customer satisfaction.