Well Steve if you really want to get freaked out, check this out, I have been tracking this Great White shark for some time now, she actually swam thru the East River to the LI Sound this winter for some seals (we are guessing) then up to Cape Cod and down to Bermuda!
http://www.royalgazette.com/article/...NEWS/702189908
I dont think I will be jumping of the boat anytime soon