To enroll in this course, you should have: An SSI Open Water Certification (or an equivalent qualification from another training organization) Begin the SSI Open Water Certification Course Online The SSI Open Water Certification course is now available as part of SSI Digital Learning. The online course provides you with the foundational knowledge required for seven of the most popular Adventure Dives, although you and your instructor can still select any of the Adventure Dives. The Learning Materials You Need The SSI Open Water Certification course is now available as part of SSI Digital Learning. You can use them as a guide to enhance your diving skills and prepare for exciting new experiences and adventures. Interested in night diving? Simply turn to the night diving chapter. Struggling with underwater navigation? Review the underwater navigation section and then sign up for the Navigation Adventure Dive with your SSI Instructor.