It will take you just one day out snorkeling to realize that barracuda are here. They tend to move very slowly and many times seem to float right next to you. This is their home and you are in the living room! Luckily, they do not tend to bite people but if you stick your fingers out?
One key is not to snorkel next to anybody fishing. No chum or bait in the water, so there is no blood. Sharks are the big deal, not the Key West Barracudas.
Key Largo rocks for a vacation pleasure trip and you get the reefs to play with. The Barracuda are so fun to say hello to. For food you get it all and Fresh Seafood is certainly not a problem. My picks for food after fishing include Tower of Pizza and the Fish House.