If you enjoy swimming, boating, hiking, biking, rollerblading, and bird watching, Erie, PA is the place to be. Check out our list of the top 15 FREE activities in Erie, PA. In this post, we will discuss the best free things to do in Erie, PA.  On certain days, some of the free things to do in Erie, PA, such as Lakeview Railway Museums and Seaport Beach, offer free activities.   Let's...