Statistically, flying is far safer than driving (apologies for not having boating data). The numbers are a few years old, but a quick search dug up the following:

http://www.crashstuff.com/driving-or-flying-plane-vs-car-acc...

http://freakonomics.blogs.nytimes.com/2007/04/18/the-miracle...

http://www.meretrix.com/~harry/flying/notes/safetyvsdriving....