Afraid you won't be able to navigate the local maps in Waltham? Book a rental car, specifying the availability of a navigator. Thanks to the well-developed infrastructure, it will be possible to pick up the car at one of the rental car pick-up points: Downtown, The Westin, North and others, etc. While driving around the city for several days, you can understand the geography of Waltham and in the future you can easily navigate the roads.