See also: Parenting Issues Port Discovery Children Museum baltimore exhibits Port Discovery Children's Museum: Summer Events Use your key for the next articleNext: Download a historic 78-page children's drawing book for free! May 30, 2014 9:02 AM MST Facebook Twitter Pinterest Linkedin Google Plus Comment All active and veteran military personnel who present a valid military I.D. or discharge papers at the Port Discovery Box Office will receive free admission to Port Discovery from through June 30th. Photo by Fiona Goodall/Getty Images View all 5 photos Wondering what to do with the kids this summer? Here's a roundup of activities at Port Discovery in Baltimore.