The Friends of Lakeshore State Park board of directors invite the public to attend an open house on Tuesday, April 21 from 4 p.m. until 7 p.m. in the Miller Room at O'Donnell Park, located at 910 E. Michigan St., for the public introduction of a design study by The Kubala Washatko Architects for a new visitor and education center on Lakeshore State Park.