I was certified by SSI, we bought our book and video, went home and completed the chapter reviews. We had our first class at 6pm on Friday where we reviewed then did the swim and float and snorkeling until 10 pm. Saturday we did our final exam st 9am then to the pool for skills training until 5pm. Sunday we had skills/pool training form 10am-3pm. Then, we had our open water dives a few weeks later doing 2 dives on Saturday (2 instead of 3 because of bad weather) and 3 on Sunday.