The Zwaanendael Museum, 102 Kings Highway, Lewes, will celebrate Dutch-American Heritage Day from 10 a.m. to 4:30 p.m. Nov. 18 with a series of Dutch-inspired activities.

Activities will include Dutch crafts, historical information and, at 2 p.m., “An Overview of the Environmental History of the Delmarva Peninsula,” a lecture by historic-site interpreter Alan Roth. Admission to all activities is free and open to the public.

The environmental-history lecture will be held on the museum’s second floor; admission is free, but reservations are required by Nov. 17 to 645-1148.

For more, call 645-1148.