Recent efforts to create a national park in the Grand Traverse Islands will be the topic for the next installment in the Door County Maritime Museum speaker series Thursday evening. John Bacon, Chairman of the Friends of the Grand Traverse Islands, will present the program at 7PM at the museum’s Sturgeon Bay facility on the city’s west side waterfront. Bacon suggests that the islands, stretching from northern Door County to upper Michigan’s Garden Peninsula, are Door County’s best kept secret. They are not only home to five 19th century lighthouses and a US Life Saving Station, but they provide a critical habitat for many rare plants and animals and comprise the most striking example of the Niagara Escarpment in the United States. As always, programs in the Door County Maritime Museum speaker series are free and open to the public.