The Greenbush Trail is an off-road biking, hiking, and cross-country ski trail. Its length is approximately 9 miles. The area provides picnic facilities and shelters. The Greenbush Campground, located adjacent to the trail system, has nine sites (available by reservation only) April through November.

If you're looking for a challenge or best workout, the 5.1 mile purple trail is your best bet. This trail will provide views of Bear Lake and runs through the Bear Lake Marsh. An open Kettle can also be found on your journey.

If you are looking for something in-between, try the green trail. It runs 3.6 miles. The green trail runs in the center of that particular part of the forest. The open Kettle mentioned before can also be observed on the trail.

The red trail runs 1.5 miles, next to the Ice Age Trail, near the Greenbush picnic area. The Pink trail with a distance of .7 of a mile is also located in the vicinity of the picnic area.

Your easiest selection would be the brown that runs 1 mile. This surrounds the picnic shelter and is perfect for a hike or ride after a picnic.

The Trail entrance is located on Kettle Moraine Drive, 2.5 miles north of Highway 67. A heated picnic shelter with grills, tables, toilets and drinking water can be found at the trailhead. A state park sticker is required. In addition to the state park sticker, a trail pass is required for all people 16 or older biking or in-line skating on the New Fane and Greenbush trails. A trail pass is not required for hiking. Trail passes can be purchased at Forest Headquarters, DNR Service Stations, or at either The Mauthe Lake or Long Lake Recreation Area.