Choose your mode of transport and set off on an adventure that will take you all the way across the city. Can you navigate huge roundabouts with sleeping sea dragons, or cross bridges guarded by gorillas? Negotiate pesky road obstructions by solving the math problems correctly. Pick up hidden objects, collect bonus points, and use your mapping skills to zoom backward and forward through the book. Incredibly busy and colorful artwork will delight young children, and once they reach their objective, readers can absorb themselves in all sorts of bonus math activities.