This week, Ryan and I are traveling with my family around the great state of Florida.   You may remember my parents training for their Scuba certification in July of this year.  Well, they got their certification (along with my sister, Nicki) and can’t stay out of the water.  This week, we went on three dives (I am a snorkeler myself).  Our first was at Devil’s Den. Here is an engineering drawing of the sinkhole that makes up Devil’s Den. Looking down to the dive platform from the top of the sinkhole.   Cool, huh? The average air temperature in Florida at this time of year is 74F.  On this day, it…