How to Play Busytown Eye Found It!

About Richard Scarry's Busytown: Eye found it! Game, from BoardGameGeek:

This is a cooperative game appropriate for preschoolers, combining a race across Busytown, with a mechanic of looking for specific objects on the map (flags, ladders, etc.). The game board is over six feet long. (from the rules sheet) Drive across Busytown toward the ferry that will take you to Picnic Island. On your way, you will help Goldbug find hidden objects all around town. The more you find, the faster you move! Will you make it to Picnic Island before Pig Will and Pig Won't eat all the food?