Take I-71 north to exit 50, turn left on US-68; drive 17 miles to right on Clifton Road; 4 miles to left on Grinnell; right on John Bryan Park Road. Follow to the park entrance. Enter the park and at the left turn, stay straight and drive to the parking lot at the end of the road. Bring picnic lunch.
This is one of the best walks of the year. If you could do only one walk during the year, this is the one.