About Scuba Diving International Scuba Diving International (SDI) is one of the largest diving certification agencies in the world, operating across 24 regional offices in over 100 countries, with thousands of SDI facilities and instructors around the world. SDI training covers a wide range of interests and skill levels, including recreational diving, technical diving, emergency response diving and performance freediving. Our purpose is to help more people safely explore the underwater world with
International TrainingCategories: Training
Enter your email, subscribe to our newsletter and stay informed!