Jelly Fish sting!
We kayak about 1.6 miles out toward a little island and find coral reefs close by. As I'm floating on the surface looking down at the amazing coral and little fishes of all sizes swimming busily in, out and around the coral community, I suddenly feel a little electric shock above my wrist, that first I ignore but as it starts burning, I look up and see a little jelly fish suspended a foot from my arm. I hightail it away from that coral reef.
It is not as bad as my fears and although I get about a 4" by 2" swath of red bumps and rash, by the next day it is gone!