Highlights kelso the borders alnwick castle harry potter northumberland coastline river tweed east lothian a fantastic day out to the scottish borders and the north of england discovering the magic of harry potter and hogwarts castle you also visitkelso in the heart of the borders and pass through the historic walled town of berwick on tweed which has changed hands between scotland and england an incredible 13 times thisfascinating day out is ideal for fans of harry potter wiz