Guided bike tour of York, inside and outside the city walls.  Starting at a central location in the city.  A 2 to 2.5 hour tour with multiple stops to hear the stories of the saints and sinners, the good and the evil, from Romans and Vikings to the sweetness of chocolate makers.  Although factual, your guide will tell the grisly tales in a lighthearted way.  The route is planned for safety and the best stopping view points and is mainly on quiet roads or designated cycle paths.