Deep water mainly due to bad experiences when I was a child. I am a lot better at it now but at the pool I can't go anywhere that is deeper than my height or I freak but when I was a teen I never used to be able to go into spas, pools or the beach so at least its not as bad as what it once was.
I also don't like moths very much, they freak me out and so do cockroaches. One time I was driving to my uni and this big cockroach appeared near my car dash! I had never been so scared in my life. I had to keep driving to uni, got there and had to call my grandparents who were an hour away to drive up and remove the cockroaches, lets say they weren't too impressed with me about that one!