These natural areas are properties of Western Michigan University. A pedestrian entrance is on Winchell Way. Four homes designed by Frank Lloyd Wright overlook the smaller lake in this preserve. Swans frequent Asylum Lake. See an Asylum Lake map at Topozone or an Asylum Lake website Kleinstruck preserve is smaller.
Pedestrian entrances lead to a loop trail around a pond.
The Portage Bicentennial Linear Park has a paved trail for rollerblading, walking, or family bike rides. The trail parallels Westnedge for three miles. A concession rents canoes and bicycle surreys in the summer. Bishop's Bog provides a close look at an unusual ecosystem. The trail connects to trails in the West Lake Nature Preserve and Schrier Park, making a fairly long hike possible.