This is not sour grapes to all you lucky people going to the beaches, have read about a four year old that was stung by a Box Jellyfish and stopped breathing Jan 2007 in Thailand, if you see one get out of the water quick.

http://www.bugbog.com/travel_safety/dangerous_animals/jellyfish_stings.html

Forgot to add the little boy lived but will have some scars for life