Just terrible.......That is my cycling route, I live right there.....My sister called me this morning as she was driving on the Causeway worried about me as she knows that I am always there. I was home as I was not feeling well........Key Biscayne is a high income area and you see lots of young people in their expensive toys driving very, very fast (80+mph). It is crazy, sometimes you really want to kick the crap out of some drivers!