I believe he has had 11 lessons. He has come a long way from day one, terrified and screaming, 6 weeks ago.
I've really liked his swimming class. It's the same place he was taking gym class(American Kids). We switched over for this 8 week session to take swim. The classes are unlimited, I just have to call ahead, so we try and go 2-3 times a week. Plus, the pool is indoors, so no sunscreen fights and it's salt water, not chlorine.