The preserve is open daily from dawn to dusk. Grass River Natural Area is located off CR-618, four miles north of Alden. Sand Lakes Quiet Area is also a highly popular spot for family hiking. Motorized traffic is barred from this 2,500-acre preserve. More than 10 miles of easy walking trails wind through its sandy hills and forests covered with towering hardwoods and graceful pines.
Trails connect woods to secluded lakes where hikers enjoy fishing and swimming.
You'll find maps are posted throughout the preserve. If you plan an overnight stay, you'll find rustic accommodations beneath the stars. The Guernsey Lake State Forest Campground offers campsites at the eastern end of the Quiet Area off Guernsey Road. To reach the preserve, take M-72 east of Acme to Broomhead Road, turn south on Broomhead and go 4 miles. Sleeping Bear Dunes National Lakeshore provides outdoor enthusiasts an array of trails that are located throughout the uncommonly beautiful national preserve.