The SDI Difference

Founded by Technical Diving International (TDI, the largest technical dive agency in the world) SDI has the unique advantage of seeing the recreational diving community through the experienced eyes of technical diving.

SDI was created with the philosophy that past practices should re-evaluated in the light of new technology and that recreational scuba instruction should reflect the actual needs of open water divers. SDI believes in teaching Open Water Students how to use dive computers from the start, eliminating the need to teach dive tables. Whatever direction you want to take your new life-style.

It all begins here.

SDI Online

  • Open Water Scuba Diver

    The SDI Open Water Scuba Diver course is designed to give you the necessary skills to safely conduct open water dives. This course is the key to start exploring dive destinations around the globe or even in your backyard. Learn to dive today. Get certified with SDI!

  • Advanced Adventure Diver

    If you’ve taken your Open Water Scuba Diver course and are now ready to expand your knowledge but would like to see what is out there first, The SDI Advanced Adventure Diver course will give you an overview of five (5) selected SDI specialties. Check it out today!

  • Rescue Diver

    The SDI Rescue Diver Course is designed to develop the knowledge and necessary skills to effectively perform diver rescues and assist and administer the necessary first aid in the event of an emergency.

    This course will change the way you look at diving.

  • SDI Professional

    The SDI Open Water Scuba Diver Instructor (OWSDI) course is designed to teach current Divemasters or Assistant Instructors certified with a recognized dive training organization the knowledge to effectively function as an open water scuba diver instructor.