Swim with manatees in Crystal River

Swimming with wild manatees is certainly one of the most Florida things you can do. Tour companies at King's Bay in Crystal River make the activity possible year-round.

Manatee deaths prompts 'unusual mortality event' investigations

Manatees are dying across Florida at an alarming rate. In just the first three months of the year, more than 600 have been killed -- nearly seven manatee deaths a day, according to the Florida Fish and Wildlife Conservation Commission.