The Potomac Jazz & Seafood Festival comes to St. Mary’s County, July 8-10. This award winning three day weekend event featuring a variety of national and regional jazz acts takes place along the Potomac River at St. Clement’s Island Museum and across venues at businesses in historic Leonardtown. Lots of seafood, parties, receptions and other jazz fun happen during the festival weekend. Jazz cruises around St. Clement’s Island State Park, Maryland’s first colonial landing in 1634, are offered as an optional experience. Proceeds benefit St. Mary’s County museum education programs, preservation projects, exhibits, matching grants and more. Details: PotomacJazzandSeafoodFestival.com.