Saturday Northwestern University Campus. The NU campus has long been a stopover for migrants of all kinds headed south. Park on the lakeside of the upper deck of the south parking lot off of Sheridan Rd. and Clark St., north of Clark St. beach, at 8:30 a.m. Leaders: Sue Robert and Wayne Svoboda. . The NU campus has long been a stopover for migrants of all kinds headed south. Park on the lakeside of the upper deck of the south parking lot off of Sheridan Rd. and Clark St., north of Clark St. beach, at 8:30 a.m. Leaders: Sue Robert and Wayne Svoboda.