Free dive solo is more dangerous than scuba dive solo. IMHO.
DHGPJ:Well, the diving didn't happen... no buddy... :-( Got in some great snorkeling though. The shallow part of the wall is pretty awesome going all the way out, and inside the notch there, I saw a big bait-ball of silvery fish - juvenile Stripers, maybe? I almost forgot that I was in Mass., and not the Carib.
There were lots of adult Stripers on display too.
The water was 70 on the surface (I took a dive computer). I did it without a suit for 45 minutes - no problem. It was almost as good as (and in some ways better than) a dive...