Biking
Harrington Beach State Park
Biking is allowed on all trails and park roads except for the Quarry Lake Trail, White Cedar Nature Trail and the beaches. The Service Road Trail is paved and is the most popular trail for biking. The Service Road Trail meanders through the wooded, eastern side of the park, and has connections to the campground and picnic areas.
Harrington Beach State Park is also near an alternative route for the Ozaukee County Interurban Trail [exit DNR]. The Interurban Trail is over 30 miles long and stretches south to Milwaukee County.