Directions from Madison: Straight up the interstate to the 51 exit near portage. Up 51 to Stevens Point and then 10 West. It's about a two hour trip from the UW-Memorial Union to the UWSP University Center.
By Airplane: Any one flying in from anywhere should try to come directly to Mosinee/Wausau/Stevens Point (Centeral Wisconsin/CWA) Airport. From there it's only 20 miles to the campus. Chicago and minneapolis are the nearest international airports; both are about five hours away.
From Chicago: The roads from Chicago are better (There's more interstat.) From Chicago there is also a great shuttle service to Madison.
Click here for a local map of the campus.