In 1914 crew members of the lighthouse tender Hyacinth rescued a stray puppy from the Milwaukee River and named him Sport. For the next twelve years, this charming Newfoundland-retriever mix lived the life of a ship dog, helping the Hyacinth crew as they carried supplies to lighthouses and maintained the buoys and other safety features around Lake Michigan. Sport quickly became a valued companion to his crew and a recognizable mascot of the lake-making friends in every port. In this beautifully illustrated children s book based on historical documents and photographs, readers share in Sport s adventures while discovering the various ways lighthouse tender ships helped keep the lake safe for others. Helpful diagrams, a map, and a historical note supplement this engaging story for young readers.