In February 2011 it was the Portuguese Man o' War (jellyfish) that invaded the beach of Miami and again jelly fishes are back. This time it's moon jellyfish. They look like the common round jellyfishes. And they too sting. Around mid August 2011 when I went to the beach, there were thousands of them on the shoreline and in the water. (I didn't have my camera on me to take the pic).
Jelly fish sting does not cause serious injuries, but if you're stung, its painful. Best not to get into the water. And if you do get stung, rush to the lifeguard's station. They do have solutions to ease the itching and burning from the sting. Better to check the warning flags at the lifeguard's station before getting into the water anytime of the year.
Here is a link to my last post about jellyfishes in South Beach, Miami: http://newyorkerinmiami.blogspot.com/2011/02/jelly-fish-at-south-beach.html
To find out more about jellyfish sting treatment check out the WebMD page: http://firstaid.webmd.com/wilderness-jellyfish-sting-treatment
