You'll begin with two days in York to explore England's finest medieval city, boasting Roman and Viking exhibits plus the National Railway Museum. Then hike in North York Moors National Park before visiting the scenic fishing town of Whitby.
You could walk the 3.4km around York city walls in an hour or so. But, take in sights and the occasional pub en-route, and that hour could easily stretch into a day – and night. Yes, the walls even have in-built coffee shops. This one's The Perky Peacock under Lendal Bridge.