Chessie: The Meandering Manatee (Young Readers Series)

Carrie and Ben are in Florida to visit their uncle Phil, a marine biologist. Before the kids don their diving gear and see manatees in their natural environment, Uncle Ben tells them about these big, harmless, sea-dwelling mammals, and also tells them about Chessie, a wandering manatee who caused a sensation by swimming as far north as New England.