it's possible to find parking in downtown Boulder it's cheaper,
easier, and more fun to explore the town by bicycle. If you're driving
to Boulder it will be worth your while to bring your bike along. If you
don't have one or are flying, there are several bike stores in the area
that will be happy to rent you a road or mountain bike. Most rentals
come with a helmet and bike lock.
Boulder Bike and Pedestrian Maps are
available online: http://www.bouldercolorado.gov/index.php?option=com_content&task=view&id=2959&Itemid=1425