3 years ago I was swimming in Miami beach, when suddenly people were shouting get out of the water BIG FISH, BIG FISH.
At first I did not understand what they were shouting so I ignored it until a huge shadow approached us , it was over 10 feet long and looked very dangerous, I can't remember when ever I did swim faster .
Finally at the beach I could see what kind of animal it was.
It was a huge harmless Manatee that scared the living daylight out of me.

I am glad that we sail in shallow water with only small fish only….